PlayStation® Knowledge Center | Answer
The PS3 supports the following movie and video file formats:
Disc Formats
DVD Video with either region [1] or [ALL] 1
DVD-R/-RW, DVD+R/+RW 1, 3
Blu-ray Discs™ (BD) containing video content with region code [A] 5, 7, 8, 10
BD-ROM, BD-R, BD-RE 3, 4, 5, 7...