Hello - I think I have stumbled across a problem in libmpdemux/demux_mov.c If 'len' is 0 then the routine mov_check_file() goes into an endless look of: while(1){ int skipped=8; off_t len=stream_read_dword(demuxer->stream); if(stream_eof(demuxer->stream)) break; // EOF if (len == 1) /* real size is 64bits - cjb */ { ... } else if (len == 0) /* deleted chunk */ { /* XXX: CJB! is this right? - alex */ goto skip_chunk; } else if(len<8) break; // invalid chunk ... skip_chunk: if(!stream_skip(demuxer->stream,len-skipped)) break; ... } This happened when I tried to play a SVCD, first 'AVI' was tried, then 'Y4M', 'ASF", 'NUV'. When 'MOV' was checked (by calling mov_check_file()) - the "Checking for MOV" never returned and mplayer went into an endless loop. The check for 'deleted chunk' is what appears to be causing the problem. If I comment that section out the endless loop problem goes away: --- libmpdemux/demux_mov.c.dist Tue Mar 19 15:43:58 2002 +++ libmpdemux/demux_mov.c Tue Mar 19 14:17:04 2002 @@ -223,11 +223,13 @@ #endif skipped += 8; } +#ifdef notnow else if (len == 0) /* deleted chunk */ { /* XXX: CJB! is this right? - alex */ goto skip_chunk; } +#endif else if(len<8) break; // invalid chunk switch(id){ If 'len' becomes 0 the loop becomes "read_dword", "seek back", "read_dword", "seek back", ... Is "goto skip_chunk;" the correct thing to do? The comment suggests that there were doubts about doing that. Thanks. Steven Schultz sms@2bsd.com