TV cropping DVD picture?

Yanaran · 7th July 2006, 17:30

Hi, I'm not sure if this is the right forum for this, but since I'm kind of a newbie at DVD-stuff it seems fitting.

My problem is that whenever I author my own DVDs and put them in my player, the TV crops out atleast 16 pixels on every side (a little more on right/top than left/bottom). I have a Diboss 32" lcd and a JVC dvd-recorder, the TV manual says it can handle 1366x768 or something like that (HDTV resolution I guess).

This doesn't appear to happen when I record a DVD directly from satellite and then play it back right away, but that might be because the recorder only records about 704x570 instead of the full 720x576 (PAL land) or maybe it crops the satellite signal too so I can't tell the difference. I haven't noticed the effect on commercial DVDs although that might be because I don't have that many, and the ones I have I never watch on the PC so I wouldn't really know if something was missing.

My authoring process is pretty simple, usually an avisource (huffyuv) that I resize and such in avisynth, encode in CCE and author with tmpgenc dvd author.

It's especially annoying on game footage (fraps or tv-in from another computer) because games usually have icons etc at the edge of the screen and I have to resize the footage to less than 720x576 and add borders to get it all in view. Since the original frames are usually 1024x768 or higher I don't want to downsize more than nescessary.

Is there anything I can do to make the TV display the full DVD resolution?

jggimi · 7th July 2006, 17:56

You are experiencing a phenomenon known as "overscan" -- if you search on that keyword, you will get many, many threads and posts which discuss it.

Yanaran · 7th July 2006, 18:23

Thank you for the reply.

I've heard of overscan but never thought it would be such a big part of the picture. I always assumed it was those 16 black pixels on the side and 2-5 at the top I get when I record a DVD and open it on my PC. Cheers

7th July 2006, 17:30	#1 \| Link
Yanaran Registered User Join Date: Jun 2006 Posts: 11	TV cropping DVD picture? Hi, I'm not sure if this is the right forum for this, but since I'm kind of a newbie at DVD-stuff it seems fitting. My problem is that whenever I author my own DVDs and put them in my player, the TV crops out atleast 16 pixels on every side (a little more on right/top than left/bottom). I have a Diboss 32" lcd and a JVC dvd-recorder, the TV manual says it can handle 1366x768 or something like that (HDTV resolution I guess). This doesn't appear to happen when I record a DVD directly from satellite and then play it back right away, but that might be because the recorder only records about 704x570 instead of the full 720x576 (PAL land) or maybe it crops the satellite signal too so I can't tell the difference. I haven't noticed the effect on commercial DVDs although that might be because I don't have that many, and the ones I have I never watch on the PC so I wouldn't really know if something was missing. My authoring process is pretty simple, usually an avisource (huffyuv) that I resize and such in avisynth, encode in CCE and author with tmpgenc dvd author. It's especially annoying on game footage (fraps or tv-in from another computer) because games usually have icons etc at the edge of the screen and I have to resize the footage to less than 720x576 and add borders to get it all in view. Since the original frames are usually 1024x768 or higher I don't want to downsize more than nescessary. Is there anything I can do to make the TV display the full DVD resolution?

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7th July 2006, 17:56	#2 \| Link
jggimi Moderator Emeritus Join Date: Dec 2001 Location: The NW corner of Lake Erie Posts: 5,562	You are experiencing a phenomenon known as "overscan" -- if you search on that keyword, you will get many, many threads and posts which discuss it.

7th July 2006, 18:23	#3 \| Link
Yanaran Registered User Join Date: Jun 2006 Posts: 11	Thank you for the reply. I've heard of overscan but never thought it would be such a big part of the picture. I always assumed it was those 16 black pixels on the side and 2-5 at the top I get when I record a DVD and open it on my PC. Cheers