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**Topha** · 5 January 2003, 07:42

Ha, the jerky playback seems to have been the fault of Windows Media Player (should have guessed), so that problem is solved.

What is still bugging me is the 704 resolution, are there any fixes know for that?

**Brian Ellis** · 5 January 2003, 07:42

Don't understand your last question: MSP 6.5 supports every conceivable frame size and then some from 40 x 30 to 800 x 600. Go into Project Settings|Edit|Compression and choose the codec you're using, then go to the General tab and you'll find all the usual supported frame sizes for that codec in the Standard list. If not, you should be able to define it yourself.

I suspect you may have the wrong codec selected, and this means that you could have problems (such as those you describe if this happens when displaying).

**Topha** · 5 January 2003, 07:59

The matrox videocapture drivers only support 704 x 576

all my menues are in german so im not quite sure, but when i use the ulead video capture program and choose, for example, Mpeg2 DVD PAL quality, the program tells me to change my video format to 720x576, which i can not do, neiter under yuv2 nor under any of the rgb settings.

i read about this somewhere else a few months back, and they said it is a hardware restriction with the g450eTV.

**Brian Ellis** · 5 January 2003, 08:55

You shouldn't choose mpeg-2 for normal capturing. Choose the same codec as you would for a quality capture, such as MJPEG if you use PicVideo. You should convert to MPEG-2, if you want to make a DVD, only after all the editing, titling, etc. is finished, keeping everything in the same AVI format/resolution as your capture until then.

Give or take an ounce or two, an MPEG-2 DVD PAL file is compressed 5 times more than a DV file, 10 times more than a good quality MJPEG one and 20 times more than an uncompressed RGB one. Quality is not necessarily proportional to the degree of compression as different algorithms are used with the different types.

Also make sure that you use Field base B with your Marvel if your output is for a TV set or Frame base if you view only on a 'puter screen.

**Topha** · 5 January 2003, 10:11

okay, again:

my problem is, that i cannot capture at a resolution of 720x576.

with virtual dub i can set it under custom format, but the file only shows green, no matter what compression method i use, even if i use no compression at all.

when i turn the resolution back to 704x576, it works.

with the msp 6.5, i did not figure out how to set a custom format, but i dont think it would work anyway...

**Dr Mordrid** · 5 January 2003, 10:39

This thread topic has a habit of popping up about evey two weeks, doesn't it?

Both 704 and 720 are legal resolutions and can be used on DVD's. Edit in whatever your card can capture by creating a custom profile in MSPro 6.5.

You do this by opening the project settings and defining the frame size (704x576), field order (field B for Matrox cards), frame rate (25fps for PAL/SECAM), codec (Matrox MJPeg) and audio sampling rate (16 bit/41 khz) then saving it out as a custom profile with its own name. Most capture cards have their own set of "legal" settings, which should be listed in the manual.

Most of the excess width over 680 is called "overscan" and is for the benefit of out of adjustment TV's. As such this excess isn't isn't displayed on normal TV's, but will be visible on your computer screen.

This doesn't mean you should cut if off, you shouldn't, but don't expect to see something placed in one of the corners to show on a TV. This is called "keeping something in the action or title safe region".

Dr. Mordrid

**Topha** · 5 January 2003, 11:08

okay, thanks

i guess that means the g450etv cant capture at 720, but if its not a problem, i guess its okay

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