Hi. Thanks for quick answer. RD> Try with different -cache-seek-min values and -demuxer mov. RD> Possible causes in addition of suboptimal behaviour of the mov demuxer RD> are bad/insufficient interleaving in the files. "-cache-seek-min" doesn't seem to have any effect. Your point was, mplayer often seeks, so "0" value should stop it from waiting for the buffer to fill, right? It seeks, that's true: ****************************************** Out of boundaries... seeking to 0x10471800 Out of boundaries... seeking to 0x3E000 Out of boundaries... seeking to 0x10471800 Out of boundaries... seeking to 0x40800 ****************************************** but for some reason "-cache-seek-min 0" doesn't help. I also tried other values from 1 to 99. "-demuxer mov" makes it a little faster, but just a little. For example, with "-cache 8192" I have only laggy video and no sound. With "-demuxer mov -cache 8192" I already have some sound, and it's playing a little faster, but still laggy and desyncing. Rare lags occur with "-cache 20000" and higher with or without "-demuxer mov" --
