What files the Sony Reader Support.

The Sony Readers (PRS500, PRS505, PRS600, PRS700, PRS300 and PRS900) support the following file formats:

Unsecured Text:

• BBeB (Broad Band eBook designed by Sony). 
• PDF (Portable Document Format by Adobe).
• Adobe Digital Editions 1.5 or later.
• TXT (Text file).
• RTF (Rich Text Format)
• EPUB (Electronic Publication).
• Microsoft Word document.

DRM Text:

• Adobe DRM protected contents.
• The Book Marlin is compatible. However, it should be purchased from the eBook Store of Sony.

Audio files: MP3 and AAC7.

Image files: BMP, GIF, JPEG and PNG.