Audio CDs aren't "Regionalized" the way video DVDs are, c. i. And if you're really in need of it, most DVD players can be "hacked" to ignore the region code, and some, even very cheap ones, pay no attention to the code in the first place, though you could run into compatiblity problems as regards North American NTSC television standards vs European and Asian PAL and SECAM television standards, having to do with number of lines per frame, frame refresh rates, and picture synchronization. There are workarounds for all that, too.
Osso, I hadn't even considered the "masculine O suffix" thing. In Japanese, the suffix "ko" is a feminine diminuitive ... so maybe a Japanese reader might be inclined to think, judging from my screen name, that I would be a cute young hottie. The mind boggles