Hi, I'm trying to decode some reference bitstream with 'xvid_decraw' but failing (amongst others) with this one: ftp://ftp.tnt.uni-hannover.de/pub/MPEG/video/conformance/version_2/ vcon-ge11-ACEL1.bits Did someone already try decoding the reference bitstreams too, and could have a hint about what's going on before I dive into the code? later, Skal