- PDF: Adobe Acrobat Reader must be installed on your computer / phone in order to view PDF formats.
- ePUB: You can read ePUB formats with iBook on Mac computers, iPhone and iPad devices, and Adobe Digital Editions on PC computers.
- MP3: You can listen to MP3 formats with your favorite Media Player program.
- RAR: Compressed file format, you need to first extract it to listen to RAR file.
- MOBI: You can read MOBI formats with Kindle book reading devices sold by Amazon.com.