I've just started using retrox and I'm having trouble with some of my ps1 games not being recognised. The problem roms are all .PBP format, I've tried scanning them individually but I get an error saying it's not a valid game file. I have other games in the same format that run fine and I've used all the roms on stand alone epsxe before with no problems, any ideas where I'm going wrong ?

Please help.

I didn't find the right solution from the internet.

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Thank you