I'm gonna download Nine Inch Nails latest album & they give an option to download it in "a variety of formats including high-quality MP3, FLAC or M4A lossless at CD quality and even higher-than-CD quality 24/96 WAVE.".
I'm not sure if the latest PSP firmware allows playing of FLAC or M4A music or even "24/96 WAVE" ( whatever that is).
I have The Slip Album as well... though on the site, only the mp3 version is a direct download from NIN's site, the other formats you download a torrent file first... But even if you just searched for the torrents I don't think it's pirateing since they are the ones who first put the torrents up when they released the whole album as a free download.
As for the PSP playback... it can play WAVE (Linear PCM) files... though I'm not too sure that's not the same thing as a 24/96 WAVE file..
So far, the PSP only supports the following music formats.
- AAC (.MP4)
- AAC (.3GP)
Out of those, the only one that's CD quality is WAV, but I learned firsthand that those files are quite bulky. I also wished that the PSP supported more lossless music formats besides WAV, but I came to the conclusion that Sony may never make such a Firmware update. I decided to buy a FLAC-supported music player device later this year (either a SanDisk Sanza Fuse or an iAudio) instead of waiting for Sony.