Hi folks !!!! I'm trying to mencode Shrek dvd (ntsc zone 4) in two 700mb cds but the avifiles I got are noticeablely shorters ... and afaik is not a problem of fps. So I take a sample and do some test with mencoder (a fresh 0.90pre10). The tests was the following: I calculated the videobitrate for a target size of 2, 3, 4 and 5 mb with the formula target_size*1024^2*8/(duration_in_sec *1000) The sample is 23.2 sec. long so I got VBRATE=723, 1084, 1446 and 1807 approx. The options for the command line was: -ofps 23.976 -nosound -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=$VBRATE -vop scale=640:352,crop=704:480:8:0 mencoder reached the target size 2mb and 3mb, but it fails in reach 4 and 5 mb, the size of resulting files was in both case exactly the same: 2.9 approx. I tried with a videobitrate of 6000, but I got again 2.9mb approx Later, I repeat the test adding vqmin=1 to lavopts looking for relax the compress and ... mencoder reached the target size in all the cases as you can see: -rw-r--r-- 1 m users 66180 Nov 10 23:21 divx2pass.log -rw-r--r-- 1 m users 20971520 Nov 10 20:07 shrek-sample.vob -rw-r--r-- 1 m users 675 Nov 10 23:20 test.sh -rw-r--r-- 1 m users 2112972 Nov 10 23:03 test2.avi -rw-r--r-- 1 m users 3006992 Nov 10 23:08 test3.avi -rw-r--r-- 1 m users 3251710 Nov 10 23:18 test3b.avi -rw-r--r-- 1 m users 3006992 Nov 10 23:10 test4.avi -rw-r--r-- 1 m users 4167558 Nov 10 23:19 test4b.avi -rw-r--r-- 1 m users 3006992 Nov 10 23:15 test5.avi -rw-r--r-- 1 m users 5281016 Nov 10 23:20 test5b.avi -rw-r--r-- 1 m users 3006992 Nov 10 23:21 test5c.avi -rw-r--r-- 1 m users 3006992 Nov 10 23:17 test6000.avi (3b, 4b, 5b correspond to vqmin=1 .. test5c.avi was made with vqmin=2 and it must be 5mb) After this, I guess that I must set vqmin=1 ... But I don't understand why, and tech/libavc-options.txt still said vqmin=1 may be buggie (the test looks fine). Can someone explain what happen here? Is this a bug? (and in this case is necesary a full bug report or is enough with the info which I give here...) If you want the sample, you can download it from http://mate.dm.uba.ar/~mpavon/tmp/ it sizes 20mb. Regards, -- Martín Pavón martin_199ar@yahoo.com.ar http://mate.dm.uba.ar/~mpavon/