Playback Formats
With 33 RPM you can play and manipulate any QuickTime compatible audio or video file. The only exception is that movies downloaded from the iTunes Store (M4V) cannot be played with 33 RPM, but songs downloaded from the iTunes Store will work properly. Songs can be played directly from your computer or even from a CD. Listed below are several of the common formats that 33 RPM can play.
| Audio Type | File Extension |
| AIFF Audio File | aif, aifc, aiff |
| Apple Loop | caf |
| MIDI File | mid |
| MP3 Audio File | mp3 |
| MPEG-4 Audio File | m4a |
| MPEG-4 Audio File (Protected) | m4b, m4p |
| Ringtone | m4r |
| Sun Audio File | au, snd |
| WAVE Audio File | wav |
| Video Type | File Extension |
| AVI Movie | avi |
| MPEG Movie | mpg, mpeg |
| MPEG-4 Movie | mp4, m4v (non-protected) |
| QuickTime Movie | mov |
33 RPM's capabilities can be extended by installing QuickTime compatible plug-ins, such as the Flip4Mac WMV Player (Windows media), Perian (Flash), or XiphQT (Ogg Vorbis).