Avi to Vcd (on one cd)

[pogiangel]

I'm a new user to dvd2avi / avi2vcd and I have been searching high and low for a way to convert my avi's into vcds that fit onto one cd.

I am aware that vcd's do not share the same compression qualities of most avi's, but it's just that I can fit a ripped dvd to one cd with impressive quality.

The bitrate tab is set to use 1 800 cd. (Does this mean 800mb, or 80min?)

I would love to see what encoders and settings people use to do so. Advice is appreciated.

Cheers, Jerome

[jggimi]

Hello, and welcome to the forum.

Your question was posted in the wrong subforum, this is for discussion of DVD2AVI, DGIndex, and related tools. I'll get it moved to the Newbie forum for you.

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VCD uses a fixed bitrate, and it's designed to consume exactly the same amount of space as an audio CD. For example, a 650MB/74min disc will hold 74 minutes of video and audio in VCD format. And a 700MB/80min disc will hold 80 minutes of video and audio in VCD format.

(The bits that are burned onto the video disc includes its own error correction information, which is why you can fit 800MB worth of image on a 700MB disc. A 700MB data CD includes an "extra" 100MB for error correction that is managed for you automatically.)

For more on the VCD standard, see www.videohelp.com/vcd

[dragongodz]

VCD uses a fixed bitrate
if you mean the 1150 Kb/s CBR video being fixed then sorry you are incorrect. the 1150 is the maximum and values under that are valid for VCD standard aswell. so you can fit more than 80 minutes of footage on an 80 minute cd but will lose some quality of course.

[jggimi]

Thank you for the clarification - I assumed VCD was a fixed bitrate. You were right. I went back to the White Book specs and the bitrates do indeed say "maximum." It is constant bitrate (CBR), but not fixed at 1150.

It looks like you can adjust the bitrates on the DVD2SVCD bitrate tab, but I've never tried that for VCD. I wouldn't want to see the results, that's for sure.

[dragongodz]

I assumed VCD was a fixed bitrate
i have noticed that some commercial encoders and authoring programs are setting it to 1150 and not letting it be changed. this doesnt help either as people come to think its right.

I wouldn't want to see the results, that's for sure.
well if you only wanted a couple of extra minutes on the cd then dropping the bitrate to 1050(for example) will still be pretty close. if you drop down to say 800 its not pretty thats for sure. :)