How to edit a DVD+r and keep the same Bitrate?

[Scyho03]

I ripped the video from a dvd+r i made, opened into tmpgenc- but what bitrate do i use to keep it exactly the same as the source? all i want to is to clip the video, not change bitrates/sizes etc. Whtever I seem to choose I Cannot get it to be the same size as my original.

Is there a program that you can use with video and ac3 to cut out adverts?

[Tommyknocker]

Virtual Dub MPEG-2 AC3 mod.

[Scyho03]

k ill look into that, but ny help on the other question

I used SP on my DVD recorder to record 100minutes video to disc. max is 120mins of SP. on the disc it says 3.6gb, i used avicodec and it says its 7500bitrate 720*576 and 25fps, i set that in tmpgenc and i get an estimated file size of 5814.86. Why cant i just clip the video without having to encode