Reading the ring code of black PSX discs

[Barthax]

Any tips on reading the ring codes from PSX discs that are black?  The only one I can see is the stamped one.

[pablogm123]

Of course, you need a halogen lamp and a dark room:

/viewtopic.php?p=30702#p30702

[Sotho Tal Ker]

I use an ultrafire flashlight with a 850nm IR filter. Works great to read the rings.

[pablogm123]

It sounds interesting, thanks for the tip. Then, can you read the rings of black (actually ultradark blue/purple) discs using a powerful flashlight and a IR filter?

[Barthax]

Interesting, thanks.

[Heihachi_73]

Bump. I was just able to read a few PSX ring codes by simply holding the disc under the room light (a normal 15W CFL) and holding a cheap $2 6-LED flashlight and shining it at an angle so the beam reflects; the numbers showing up in the blue reflection (refraction?) rather than directly under the light. Not easy, but possible (some games are nearly impossible to read this way, mostly due to marks, scratches etc.).