The Nook supports a wide range of e-book formats, including ePub, BBeB, Adobe PDF, XLS, DOC, PPT, PPS, TXT, DOCM, XLSM, PPTM, PPSX, PPSM, DOCX, XLSX, PPTX, JPG, GIF, PNG, BMP, MP3, AAC and MP4 formats.
Unfortunately, there is no folder designated for video, but this is easy to fix.Now if you don't have MP4 files, then you will need to download a converter.
Sound Files - There are many different file types - WAV, MP4, AIF, AAC - but by far the most common for podcasts is the MP3 files.
The PSP will only play certain types of audio files, including music in MP3, MP4, ATRAC3Plus, WMA and WAV formats.
HD-Trailers allows users to take advantage of downloadable movie trailers in three formats: .mov, .wmv, and .mp4.
Actually you can download any type of video file; you just have to convert to MP4 with a program.
When the podcast is over, save it in a podcast friendly format like .mp4, .mp3 and so many more.
The program will convert pretty much any video file (WMV, AVI, RM) to MP4 to view on your PSP.
You can also watch UMD format movies or you can transfer MP4 formatted movies onto your PSP.
MP4 movies can be relatively small files without losing the quality of the original video.