I was wondering, what happened to the PS3 key files from the website?
I haven't downloaded any for a few months but when I did a while back they would show the disc key in notepad while now they only show unintelligible symbols. If I remember correctly they were 34bytes (32 for the key + a new line) while now they are only 16. Also, weren't there dkey too before?

We changed from text format to hex format not a long time ago. If you still need the old text file format (.dkey) you can find the whole set in Downloads on the main page.

PX-760A (+30), PX-W4824TA (+98), GSA-H42L (+667), GDR-8164B (+102), SH-D162D (+6), SOHD-167T (+12)

What does the change do exactly (apart from what I said)? I do not have advanced knowledge in all that. And why changing? I am a little curious.

No other changes besides the format. Changed because apparently most (or all) apps only support hex format.

PX-760A (+30), PX-W4824TA (+98), GSA-H42L (+667), GDR-8164B (+102), SH-D162D (+6), SOHD-167T (+12)