Hi, i encountered some problems to encode HD (720P) with x264 (669i_pulldown by Trahald). I got this error : mv: l1r0 (-288,488) limit: 480 mb_xy:73,9 completed: 264 Assertion failed: 0, file encoder/analyse.c, line 2832 This application has requested the Runtime to terminate it in an unusual way. This is the AVS script i used: DirectShowSource("I:\HDTV\video\video.grf",framecount=196061,fps=23.976,audio=false) AddBorders(0,96,0,96) ConvertToYV12() Here are my x264 commands: "I:\HDTV\x264.exe" --pass 1 --bitrate 7750 --stats "film.stats" --vbv-init 1.0 --aq-strength 0.25 --aq-sensitivity 5 --keyint 12 --min-keyint 4 --mvrange 511 --nal-hrd --vbv-maxrate 25000 --vbv-bufsize 14745 --level 4.1 --bframe 2 --b-rdo --weightb --bime --ref 3 --mixed-refs --deblock 0:0 --qcomp 0.75 --ipratio 1.10 --pbratio 1.10 --partitions "all" --8x8dct --me "hex" --subme 7 --threads auto --no-fast-pskip --aud --sar 1:1 --deadzone-intra 6 --deadzone-inter 6 --non-deterministic --progress --output NUL "I:\HDTV\video\video.avs" "I:\HDTV\x264.exe" --pass 2 --bitrate 7750 --stats "film.stats" --vbv-init 1.0 --aq-strength 0.25 --aq-sensitivity 5 --keyint 12 --min-keyint 4 --mvrange 511 --nal-hrd --vbv-maxrate 25000 --vbv-bufsize 14745 --level 4.1 --bframe 2 --b-rdo --weightb --bime --ref 3 --mixed-refs --deblock 0:0 --qcomp 0.75 --ipratio 1.10 --pbratio 1.10 --partitions "all" --8x8dct --me "hex" --subme 7 --threads auto --no-fast-pskip --aud --sar 1:1 --deadzone-intra 6 --deadzone-inter 6 --non-deterministic --progress --output video.264 "I:\HDTV\video\video.avs" Thanks Bye