PlayStation Development Network

Hey everyone, please redirect me if this is the wrong place for this question. Is anyone aware of alternate CD player software for PSX (i.e. besides the built-in CD player capability)? I'm looking for something that can increase or decrease the playback speed (pitch up/down).

I'm new to PSX dev and what got me interested is the feature of Music 2000 where the disc can be taken out such that an audio CD can be loaded.

I don't know of any.
But I think it wouldn't be that hard to code that feature, to speed it up, you just remove samples, to slow it down you just duplicated them. I'm not 100% sure that's correct I've never done it.