length of a video-cd

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I was wondering if it is possible to make a video-cd with a slightly lower bitrate that 1speed cd-rom(172Kb), for example 5Kb lower that the normal rate. In this way slightly ore wil fit on a video-cd. Also has anyone burnned video-cd's that are larger that 78 minutes(using a 80 minut cd-r)? Any response is welcome..


-- stephane (pliskens@yahoo.com), November 16, 1999


Stephane, I'd have to say yes and no. Yes, you could encode at a lowerbitrate, and proably burn it as a slightly illegal VCD through adaptec's VCD creator, but your results will be interesting to see. It'll probably play back on a PC based player, but don't expect good results from a DVD or VCD player. After all, VCD is a specification, and any variance from the specs make it no long a true VCD, which is based on time, not information rate(hence 700+ meg on a 650 meg CD as long as it meets VCD specs and is under 71 minutes). So can you change bitrate, sure. Is it still a legit VCD, no.

-- Steve (beepblip@hotmail.com), November 16, 1999.

hi Guys I would have said the same thing but for this:

In trying to make a higher data rate vcd as has been discussed on this forum. I was using the Panasonic encoder and trying to make a VCD at 2200kbits per second and the encoder said no way because the data rate needs to be (from memory) between 600 and 1150kbits/sec.

If that error message is correct then it would appear possible to make a videocd at half the data rate or anywhere in between but not one at the higher rate unless one screws the normal Mpeg-1 file into a vcd format manually. I did not try the slower data rate option so I cannot give an answer and I do not have a copy of the white book spec to check it out. I cannot imagine the image quality at half the data rate if it were possible.

-- Ross McL (rmclennan@esc.net.au), November 16, 1999.

Forgot to add, you will most likely have to burn non standard vcd files with Nero as a minimum - Bravo Nero!

-- Ross McL (rmclennan@esc.net.au), November 16, 1999.

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