Thanks for all the reports! 
The retsize bug should now be fixed in r1965 (it was missing an Integer.reverseBytes).
I've also added an experimental implementation of PRX version 1 decryption routine for games ranging from firmware 1.00 to 2.80. This still needs some more testing, so any errors under this version are quite expected.

The retsize bug should now be fixed in r1965 (it was missing an Integer.reverseBytes).
I've also added an experimental implementation of PRX version 1 decryption routine for games ranging from firmware 1.00 to 2.80. This still needs some more testing, so any errors under this version are quite expected.