x-content/audio-cdda
audio CD
x-content/audio-dvd
audio DVD
x-content/audio-player
portable audio player
x-content/blank-bd
blank Blu-ray disc
x-content/blank-cd
blank CD disc
x-content/blank-dvd
blank DVD disc
x-content/blank-hddvd
blank HD DVD disc
x-content/ebook-reader
e-book reader
x-content/image-dcf
digital photos
x-content/image-picturecd
Picture CD
x-content/software
software
x-content/unix-software
UNIX software
x-content/video-bluray
Blu-ray video disc
x-content/video-dvd
video DVD
x-content/video-hddvd
HD DVD video disc
x-content/video-svcd
Super Video CD
x-content/video-vcd
Video CD
x-content/win32-software
Windows software
