ONPA - production of the studio of the same name in Bangkok (Thailand) at the former TDK plant, mid-80s. Since the mid-90s, the same plant has been producing TDK SA series cassettes.

Image Brand Manufacturer Model Description Type Length Year Made in Market
Compact Cassette ONPA UDI 60 Type I Normal Thailand ONPA ONPA Stereo Co. UDI - Type I Normal 60 - Thailand
Compact Cassette ONPA UDI 60 Type I Normal Thailand ONPA ONPA Stereo Co. UDI - Type I Normal 60 - Thailand
Compact Cassette ONPA UDI 60 Type I Normal Thailand ONPA ONPA Stereo Co. UDI - Type I Normal 60 - Thailand
Compact Cassette ONPA UDI 90 Type I Normal Thailand ONPA ONPA Stereo Co. UDI - Type I Normal 90 - Thailand
Compact Cassette ONPA UDI 90 Type I Normal Thailand ONPA ONPA Stereo Co. UDI - Type I Normal 90 - Thailand