I now have a 5800 and the following is an accurate summary.
Originally Posted by DX30:
“The Toppy fully supports the DTG guidelines for 4:3, 14:9, and 16:9.
If you have the Toppy set for a 16:9 TV then all you get is either 4:3 or 16:9.
If you have the Toppy set for a 4:3 TV then you can get 4:3, 14:9 letterbox and 16:9 letterbox, depending on what the broadcaster specifies.
Note you can't choose either 14:9 or 16:9 letterbox. The broadcaster specifies which one should be displayed and the user can zoom between that letterbox and 4:3 center cutout, but not between 14:9 and 16:9.
e.g. On the BBC Eastenders will be a 14:9 letterbox while a movie will be 16:9 letterbox...”
@hgt @mossy2103 - you were right. The Toppy does not have a 14:9 setting - not in the manner of a Vestel PVR which can consistently force 16:9 to appear 14:9.
The Toppy seems to sit somewhere between my other Zoran-based PVR, which ignores the broadcaster's AFD flag and hardly ever outputs 14:9, and a Vestel, which will do it all the time if you want.
Originally Posted by DX30:
“Of course that is for a Toppy out of the box - you can get TAPs that allow you more control over the letterbox format.”
Yes and no. The deep letterbox TAP will force an unwanted 14:9 into a 16:9, but not the other way round - because, according to the author: "If the AFD value is 10 (normally found on Channel 4), then nothing can be done and you are stuck with Deep letterboxing."
Hmm. I have a £16.50 freeview STB that does it just fine.
However good a patched Toppy is in every other respect, this appears to be one of its few shortcomings.