This type of archives found in Zill O'll Infinite Plus for PSP.

It consist of two files - .arc and .bin. .bin is actually a file allocation table, pointing into files in .arc.

Here is the structure for PA.bin / PAMI.bin:


Offset Length Type Description
0x00 0x04 String Magic bytes ["PAA".0x0]
0x04 0x04 UInt32 Empty [0x0 0x0 0x0 0x0]
0x08 0x04 UInt32 Number of entries
0x0C 0x04 UInt32 Start of entries table (aligned 0x10)
0x10 0x04 UInt32 Start of offsets table
0x14 0x04 UInt32 ???