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geort45
6th November 2006, 18:23
Hi!

A puzzling question, for me :P

All I'm trying to do is to make a VCD with video bitrate lower than the standard 1150kbps, using TMPGEnc. The problem lies in the "stream type" in the system tab.

If I use "MPEG1 VideoCD", no matter what bitrate I choose, the file ends up the same size as if I used 1150kbps, BUT the quality is not the same. I dunno why TMPGEnc forces that.

There is no such file-size problem if I select "MPEG1 VideoCD (non-standard)", however Nero complains that it's not a standard mpeg (unless I encoded at 1150kbps), so I've not found any way around that than encoding these non-standard mpegs and ignoring the standard-compliance; unfortunately I don't have a stand-alone DVD player to test the discs created that way =/ (they work no prob in a PC)

Have any of you ever done that before, and verified that the VCDs worked in a home player? Any clue creating a lower-than-1150 VCD would be greatly appreciated :o !

Awatef
6th November 2006, 18:31
It depends on the DVD player, some play, some don't.

geort45
6th November 2006, 18:41
Hi!

So, have you created lower than 1150kbps VCDs before?

Thanks!

Awatef
6th November 2006, 18:47
Yeah, lower, higher, they do play on some, but you can't garantee they work everywhere.

Sulik
6th November 2006, 19:05
The VideoCD mux is CBR, so if you use a bitrate lower than 1152kbps, the multiplexer will pad the bitstream to 1152kbps.

geort45
6th November 2006, 19:21
Ohhhh ok ok, thank you both :D