Originally Posted by ab48uk:
“No, I just deal with 4:3 DV or DVCAM tapes recorded in SD quality.
DivX encoding (Google tells me) compresses the original files considerably. Perhaps this is what enables them to go via USB?
Just guessing really - I'm no expert!”
“No, I just deal with 4:3 DV or DVCAM tapes recorded in SD quality.
DivX encoding (Google tells me) compresses the original files considerably. Perhaps this is what enables them to go via USB?
Just guessing really - I'm no expert!”
Your digital camcorder tapes have a lot less compression, the format is DV AVI and 20 mins uses roughly 4gB. SD tV uses mpeg2 (just like normal dvds) and this on a good quality high bitrate broadcast takes about 2gB for one hour. The data transfer speed requirement for mpeg2 is roughly 1/6 of that for DV AVI (mpeg2 2gB/hour DV AVI 12gB/hr). HD TV uses H264.Mpeg4 and as you say is even more efficient. DivX is simply a variation of mpeg4 and the compression is so efficient that you can get a whole SD movie to fit on a 700Mb CD.
Last edited by grahamlthompson : 29-11-2008 at 16:36




)
”
]