There was a rumour that if you did a 1:1 copy of a playstation game onto a CD-R with a black burnable surface, then you wouldn't need a mod-chip. THIS IS FALSE. You ALWAYS need a mod-chip
Here's a question though:
I make a lot of playstation backups, and I've developed the habit of running Nero CD Speed after EVERY burn to check the BLER. I've been noticing that almost every Playstation game burns with 1 or 2 unreadable blocks. Regardless of burning speed or medium (for those that are interested, I've tried CMC, Ritek and Prodisc). I'm guessing that they were either bad rips (not done by me), or it's just a type of copy protection (since they ALWAYS appear in the same spot). But I would like peoples opinions on it.
I burned the same game 5 times before giving up (The game was "Sheep" if it helps). 9 times out of 10 the game loads fine and plays normally.