Taiyo Yuden Co,.ltd.
MITSUBISHI/Verbatim
Hitachi maxell
TDK Corp.
Ricoh Co,.ltd.
SONY RecordingMedia.
Intermedia.
RiTEK Corp.
CMC Magnetics Corp.
Prodisc Tech Inc.
(OXOLIFE)
Prodisc Tech Inc.
(AZO)
DAXON Tech Inc.
GigaStorage Corp.
Optodisc Tech Corp.
Princo Corp.
Infomedia Inc.
Umedisc ltd.
Falcon Tech Int.
Thaimedia Inc.
MoserBear India.