If this is posted elsewhere on these forums please link me, I did a search but couldn't find anything relevant..... I have about 200 movies that I've converted into h.264/avc over the years when I had my iPhone, I've always had problems playing them on my N900, they play beautifully on iPhones (2G, 3G, 3GS)/iPod Touch's (1G)/Archos Box's/Blackberry Storms, yes I've tested all these devices over the years, these are the basic settings I use Handbrake for mac Size: 640x272 or 640x320 depending on the aspect ratio of the film Encoder: x264 Quaitly: 53-60% constant depending on 'my opinion' the quailty of the film, I generally do action/sci-fi films at 60%, cartoons and dramas at 53% FPS: same as source Audio: AAC (Core Audio) I've been using these settings for years and have worked over numerous devices... When I first got my N900 the movies playback was very choppy with skipped frames, the minor update last week improved the playback slightly but skipped frames were still noticeable in fast moving scenes and now PR 1.1 refuses to play any of my media.. I have installed the extra decoders pack from devel but still no luck, as I do not have a Windows PC re-flashing my N900 is a problem, I know there is a flasher tool for mac's but to be honest I don't really wan't to risk 3rd Party Software fubar'ing my phone. Any one got any ideas???? PS If anyone suggests re-encoding over 200 DVD's I will put a HEX on you.....