The PS3 is compatible with many different file types, playing and displaying just about anything you can throw at it. The full list is as follows: (video) MPEG-1, MPEG-2, MPEG-4, AVI, Motion JPEG, AVCHD, H.264/MPEG-4 AVC - DivX and Xvid coming soon; (audio) MP3, WMA, WAV, Audio CD, SACD (60GB version only); (photo) JPEG, PNG, TIFF, GIF, BMP.
Whatever format you want to access, the trick is to put your files in the right place so that your PS3 can actually see them.
Take any removable media - be it a USB stick, Memory Card or CD-R with files on it - and lace music, pictures and videos in folders called 'MUSIC', 'PICTURE' and 'VIDEO' in the root directory of the storage device. The caps are important. The quote marks aren't.
MorePS3-based files need to be in a folder called 'PS3' in the root directory of the storage device.Then, inside this folder make sub-folders called 'EXPORT' (this is the folder toput PS1 and PS2 game saves in that you find on the net), 'SAVEDATA' (for your PS3 game saves), 'THEME' (for Themes) and 'UPDATE'.