Compressing a mpg file.

[Aceplayer]

I have a large (770MB) mpg movie file and rather than cutting it in half to fit it onto cd's I was wondering if I could compress it somehow but yet try and keep the quality (which isn't that great anyway).

Does anyone know how?

Thanks.

[Treebeard]

If you burn it as a VCD or SVCD then it will fit on 1 disc. they are burned in mode2 which allows for 800mb of data.

[cd090580]

Burn it as a vcd/svcd so you can fit up to 800 mb on a 80min cd.

[Aceplayer]

What I’m trying to do is fit it onto one disk and keep the quality. The file is 95mins long and so if I make it a SVCD will it not go onto a 2nd disk?

Otherwise is it possible to encode it again (not that I know how to do so)?

Also as far as I’m aware I can't convert it to svcd's coz in uni Easy CD Creator is installed which doesn't have the options and I can't install any other burning software.

[SaSi]

You can encode it again. Most MPEG encoders (like Mainconcept and Tmpgenc) can accept MPEG files as input to (re)encode to MPEG 1 or 2.

You have said that quality isn't that great and duration is 95 minutes.

To make it fit on a CD (~750MB) you can slightly drop the bitrate.

95 minutes duration is 5700 sec.

To make that fit into 750MB you need a total bitrate of 1077kbps. This is 2/3 of the bitrate for VCD (~1500kbps) and most people find VCD quality a little low nowadays.

Another option (if you don't want to make a VCD or SVCD and view that on a standalone player) would be to reencode in MPEG4 (e.g. divx or xvid) using the given bitrate. MPEG4 generally gives the same quality as MPEG2 at half the bitrate or less so you can expect no further deterioration of quality by such a re-encode.

It's your choice (try and find out).

[bugster]

To make that fit into 750MB you need a total bitrate of 1077kbps. This is 2/3 of the bitrate for VCD (~1500kbps)

VCD bitrate is 1150kbs, any more is out of spec but less is allowed.

SVCD allows up to~2500kbps, and VBR, and mpeg-2.

[SaSi]

I stand corrected. Getting a bit late and had two beers already

[Aceplayer]

I think reencode to MPEG4 sounds like a better option for me. Would anyone be able to reencode the mpg files to MPEG4, as i have no idea?

Thanks...

[Baldrick]

dr. divx, vidomi, virtualdub-mpeg2.

[freebird73717]

If the file is mpeg2 you can use rejig to transcode the file to a smaller size. I would still try to put the file in vcdeasy and make it a vcd(mpeg1) or svcd(mpeg2). 770 mb should fit on one disc.