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Deleting recordings on a DVD-RW disc


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Old 30-05-2011, 17:10
TRIPS
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I have started to copy a TV series on to DVD for a relative, i thought i could delete and record latest episodes on the same discs as long as they were DVD-RW.
recorded a few episodes on DVD-RW discs,i had to finalise the discs so they could be played on another DVD player,
I then found i couldn't delete watched episodes.
Is there no way i can record onto DVD-RW and then delete the recordings
or just record over old recordings.
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Old 30-05-2011, 17:29
grahamlthompson
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If a recording is made using the DVD-Video standard so that the discs can be played in a normal DVD player then the title navigation data is built in. The only way to alter the title content is to reformat the disc and re-author it.

DVD Recorders can use a different format that allows you to add and delete content until you finalise the disc. Such recordings are generally only playable in the DVD recorder that recorded it.

It's possible to also use rewritable DVD's a big floppy discs with a PC but again you can't normally play the video content using a DVD player.
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Old 30-05-2011, 19:42
TRIPS
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Thanks Graham,
So once i finalise a DVD -RW i cant delete or edit.
afaik as long as you dont finalise an ordinary DVD+R you can edit and delete recorded programs on that disc, i cant see the advantage of DVD-RW over an ordinary DVD disc.
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Old 30-05-2011, 19:56
dmp
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If you eraze the content of a dvd-r then the space taken by the recording is lost and the size of the disc is reduced by the size of the removed file. With a dvd-rw then once the disc is erazed it keeps the origininal size and can be written on time and time again.

Dave
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Old 30-05-2011, 20:10
TRIPS
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Ah i see,thanks Dave.
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Old 30-05-2011, 21:40
mllfap
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If you had a Pioneer recorder you would have no problems.
They have an Unfinalise option so you can undo it , delete what you want to delete then finalise it again.
But from what I've seen most recorders will only allow you to delete all the content once you finalise the disc
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Old 30-05-2011, 21:43
mllfap
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If you eraze the content of a dvd-r then the space taken by the recording is lost and the size of the disc is reduced by the size of the removed file. With a dvd-rw then once the disc is erazed it keeps the origininal size and can be written on time and time again.

Dave
Thats only true if you use -RW in its VR mode , not in VIDEO mode which is what most recorders support and discs recorded in VR mode won't play in many normal players.

Video mode will only allow you to reuse the space in the position its in.
For example - if you have 4 half hour shows on a disc and you delete programme 2 and 3 you could only record in VIDEO mode in that one hour section in the middle.

In VR mode the 1 hour of space is fully recovered and its will be as if the 1 hour is at the end of the current recordings.

This is a limitation of +RW too
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Old 30-05-2011, 22:04
TRIPS
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If you had a Pioneer recorder you would have no problems.
They have an Unfinalise option so you can undo it , delete what you want to delete then finalise it again.
But from what I've seen most recorders will only allow you to delete all the content once you finalise the disc
I have a Panasonic, DMR-EX78 DVD Recorder. there dosent seem to be an option to delete DVD-RW disc when it has been finalised.
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Old 31-05-2011, 00:10
mllfap
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I have a Panasonic, DMR-EX78 DVD Recorder. there dosent seem to be an option to delete DVD-RW disc when it has been finalised.
I think Panny are like most recorders.
You can only re-initialise or reformat it to erase it.

Panasonic took years to support -RW(VIDEO) and tried to make its buyers use the RAM discs for rewritables.

But even though they gave in and offered -RW(VIDEO) a few years back I don't think they've ever offered -RW(VR) because it can't do anything that RAM can't do
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Old 31-05-2011, 17:20
stryvya
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so there's your answer, your Panasonic, DMR-EX78 will use DVD-RAM discs

Go and by a couple and record and delete at will, like a Hard Drive on a Computer

only drawback (Maybe) if other equipment cannot use DVD-RAM
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Old 31-05-2011, 20:35
TRIPS
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so there's your answer, your Panasonic, DMR-EX78 will use DVD-RAM discs

Go and by a couple and record and delete at will, like a Hard Drive on a Computer

only drawback (Maybe) if other equipment cannot use DVD-RAM
Thanks for advice everyone,
If relatives DVD player plays DVD-RAM.
problem solved.
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Old 31-05-2011, 20:59
mllfap
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Thanks for advice everyone,
If relatives DVD player plays DVD-RAM.
problem solved.
If your relatives player plays DVD RAM I'll eat my hat.
Modern recorders might do and many Panasonic players will do but if their player is neither of those the chance of it playing RAM are remote which is why the format never caught on.

Buy a hard drive recorder then you can keep all the episodes on there and write and erase discs at your leisure until you've finished with them then delete them from the hard drive.
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Old 31-05-2011, 21:56
TRIPS
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If your relatives player plays DVD RAM I'll eat my hat.
Modern recorders might do and many Panasonic players will do but if their player is neither of those the chance of it playing RAM are remote which is why the format never caught on.

Buy a hard drive recorder then you can keep all the episodes on there and write and erase discs at your leisure until you've finished with them then delete them from the hard drive.
I do have hard drive on my player, the problem is making recordings for relative to watch on their dvd player, i prob will be making a lot of recordings and just finding way to cut the cost.
Dont think mine can play DVD-RAM.
from manual
This unit records and plays DVD-R, DVD-RW (DVD-Video format), +R, and
+RW, and plays DVD-RW (DVD Video Recording format). However you
cannot directly record to a DVD-R DL or +R DL disc on this unit (playback
and copy are possible
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Old 31-05-2011, 22:50
pavier
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On both my 7 year old Pioneer and 2.5 year old Sony HDD/DVD recorders you can unfinalise video mode -RW discs, although the older Sonys were based on Pioneer components/software so they're more or less the same.

Both recorders allow re-use of finalised video mode DVD-RW discs by the option to either unfinalise and erase content or to re-format/initialise the disc which wipes everything, freeing up the whole disc space.
When unfinalised, the video mode disc only regains usable space for the last titles erased in the list. Erasing titles earlier than the end of the list will not give up the vacated space for re-use. In VR mode you can erase anything anywhere and re-use the space.

I've no idea about DVD+RW discs, never use them.
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Old 31-05-2011, 23:34
grahamlthompson
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I do have hard drive on my player, the problem is making recordings for relative to watch on their dvd player, i prob will be making a lot of recordings and just finding way to cut the cost.
Dont think mine can play DVD-RAM.
from manual
This unit records and plays DVD-R, DVD-RW (DVD-Video format), +R, and
+RW, and plays DVD-RW (DVD Video Recording format). However you
cannot directly record to a DVD-R DL or +R DL disc on this unit (playback
and copy are possible
DVD-R blank discs cost about 16p each in bulk these days.
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Old 01-06-2011, 08:56
MrGiles2
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I sometimes use DVD-RW for recording. I FORMAT the disc on the DVD recorder if it has been used, this wipes the disc. I then recopy and finalise before it can be used on other machines.

DVD-R can only be used once. They are cheap enough to buy, from e-buyer you can buy a block of 100 discs for about £25.
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Old 01-06-2011, 09:50
grahamlthompson
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I sometimes use DVD-RW for recording. I FORMAT the disc on the DVD recorder if it has been used, this wipes the disc. I then recopy and finalise before it can be used on other machines.

DVD-R can only be used once. They are cheap enough to buy, from e-buyer you can buy a block of 100 discs for about £25.
I buy 100 Ritek full face printables from a weekly computer show (National Motorcycle Museum) for about £16.00.
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Old 01-06-2011, 10:28
Chasing Shadows
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DVD-R can only be used once. They are cheap enough to buy, from e-buyer you can buy a block of 100 discs for about £25.
And from Asda you can buy a spool of 50 for £3.70.
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Old 01-06-2011, 11:28
TRIPS
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And from Asda you can buy a spool of 50 for £3.70.
wow,didnt realise discs are so cheap.£8.95 for 50 now.but still a lot cheaper than a few years back.problem solved.
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Old 01-06-2011, 22:54
mllfap
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Why not record the programmes on your hard drive and keep them there.
Put togerther a -RW copy for your relatives player and then if you need to add recordings just wipe the -RW and copy another compilation .
If programmes from the previous disc are needed again just don't delete them from the hard drive until you've completely finished with them.

If you ensure your hard drive recordings are in SP you could edit the ads and padding out and as long as you ensure the total is 2 hours or less you can burn your dvd in 8 minutes.

If your recordings are in XP or the wrong quality level you will always have to burn in real time but there's no need to if you work things out first
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Old 02-06-2011, 15:53
TRIPS
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Why not record the programmes on your hard drive and keep them there.
Put togerther a -RW copy for your relatives player and then if you need to add recordings just wipe the -RW and copy another compilation .
If programmes from the previous disc are needed again just don't delete them from the hard drive until you've completely finished with them.

If you ensure your hard drive recordings are in SP you could edit the ads and padding out and as long as you ensure the total is 2 hours or less you can burn your dvd in 8 minutes.

If your recordings are in XP or the wrong quality level you will always have to burn in real time but there's no need to if you work things out first
This is exactly what i wanted to do milfap but as i said in OP once i finalise -RW disc i am unable to edit in any way.
are you saying as long as i record the DVD-RW in SP mode i am able to edit the disc after it has been finalised.
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Old 02-06-2011, 16:33
Chasing Shadows
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This is exactly what i wanted to do milfap but as i said in OP once i finalise -RW disc i am unable to edit in any way.
are you saying as long as i record the DVD-RW in SP mode i am able to edit the disc after it has been finalised.
No, he's saying don't wipe them from your hard drive. So, if you need to make changes, just format the DVD RW and re-record it with the recordings which are still on your DVD recorder's hard drive.
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Old 02-06-2011, 21:55
mllfap
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This is exactly what i wanted to do milfap but as i said in OP once i finalise -RW disc i am unable to edit in any way.
are you saying as long as i record the DVD-RW in SP mode i am able to edit the disc after it has been finalised.
No, he's saying don't wipe them from your hard drive. So, if you need to make changes, just format the DVD RW and re-record it with the recordings which are still on your DVD recorder's hard drive.
Thats right.
Don't delete anything from the hard drive until you are 100% finished with it.
Then instead of editing it you can simply erase the disc and do the new recording including ones from before because they are still on the hard drive.

If you make sure your hard drive recordings are in SP you should be able to do a high speed HDD to DVD copy in under 10 minutes.
If they are in XP you will have to copy in real time unless the total is under 1 hour.
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Old 08-06-2011, 08:29
MrGiles2
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And from Asda you can buy a spool of 50 for £3.70.
And if you buy too cheap, you might increasing the risk of disc failure which would be a complete waste. You only get what you pay for.
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Old 08-06-2011, 09:31
Chasing Shadows
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And if you buy too cheap, you might increasing the risk of disc failure which would be a complete waste. You only get what you pay for.
True - but of the last spool of fifty which I bought from Asda at that price, none have failed yet. And I'm over half way down the cake pack. But then, I do have a very sturdy DVDR which seems capable of writing to (and finalising) anything.
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