Playing with Openelec on the Raspberry PI - currently at build 11452 but these problems are also found on builds 11410 & 11417
PS3MS 1.54 and 1.53 - video fails to start properly, usually the audio track plays but the video itself does not start. MP3s and music play fine
PS3MS 1.50 - video plays fine for almost all files (fails on an 8GB .iso file but that is likely to be OpenElec). MP3s play fine but have completely wrong playing times of several hundred minutes so tracks do not end and the player does not advanced to the next track.
I didn't get PS3MS builds 1.51 or 1.52 but it seems the changes between 1.50 and 1.53 nicely fixed the MP3 wrong time problem but at the cost of stopping videos working.