There are 2 types of PS3 games: disc based and downloaded from PSN store.
The disc based use title id like BL
ESxxxxx, BC
ESxxxxx, BL
USxxxxx, BC
USxxxxx, etc.
The downloaded games use title id like NP
EAxxxxx, NP
EBxxxxx, NP
UAxxxxx, NP
UBxxxxx, etc.These games (except the demos) generally require activation e. So you have 3 sub-types of NPdrm games: FREE (demos), C00 (full games activated via edat) and purchased (activated via a RAP/RIF file). The activation files are stored in /dev_hdd0/home/0000000x/exdata. Also they are installed only in
/dev_hdd0/game
The
U in the title id means that the region is United States/Canada
The
E in the title id means that the region is European (I think it includes New Zeland and Australia).
The
C in B
CES and B
CUS and the
A in NPE
A and NPU
A means that it's a Sony game.
The
L in B
LES and B
LUS and the
B in NPE
B and NPU
B means that the game is from a third party publisher.
Backup Managers generally only support disc based games
BLES, BCES, BCUS, BLUS, etc. because they can be stored externally, don't require activation and can be launched without extra keys.
A recent update webMAN MOD allow to include in the list both types of games:
retail and
NPdrm.
It requires to have the icon
★ /app_home/PS3_GAME in the
Game column of XMB.
webMAN MOD also allows to install on USB devices formatted in FAT32 the NPDRM games that don't have large files (<4GB). Just need to have a GAMEI folder in the USB device, press

+

to redirect /dev_hdd0/game to GAMEI folder.