Thank you for the rescue, I loved mp3.com for discovering new artists and genres. I created an artist account and they sent me stickers and a tote bag, I thought those records were long lost, but finally just found them here!
I believe this site helped post hardcore emo break into the mainstream in the very early 2000s. Bands like Thursday and Taking Back Sunday rose on the mp3 charts with their Demos before they were signed. At least that’s how I remember it.