PSX: How to create a working disc?

[Babycake]

I've been searching for a particular rom. All the ones i've downloaded are always the same. Gives .Bin and .Cue files. When i try to load them into PSX, it says "it's not a valid file". I've tried Daemon Tools to try and fix it by changing the file to .MDS, but nothing works.

[Yawackhary]

PSX is a rather old emulator so there is a chance that the game might not work on there. Unless you mean the PS1 itself and that's a completely different issue...

Anyway what you are meant to do is just load up the cue file (cue sheet). That file contains all the info needed regarding the CD (such as the tracks and their times). If it is a copy protected game and that mainly applies to PAL games, you might have download the sbi file as well.

If you have tried loading up the cue and still no joy, then it could be the following:
*There is a chance that there might be something wrong with the cue regarding the track times and this is probably the main problem. Some emulators such as Mednafen can be very picky regarding this. It might be better to find out what game it is just in case there are dodgy cue sheets about especially if it a more common game.
*Some BIN+CUE files can have multiple bin files rather than just the one and these are usually the correct dumps, PSX might not know what to do with it.
*You haven't set up the BIOS. Only applies if you haven't already got a game working and you would have to download them somewhere and place it in the folder where it tells you.

If you just want to play the game, try something like Duckstation. Simple to use yet accurate. For ripping, this is where it gets tough because PSX I believe it is one of the emulators that makes savestates required to load into PVV and the alternative would be using either PCSX-Reloaded or No$PSX to make savestates for PSX-VRAMdotNET. Ares does have support for viewing PS1 stuff but seems to be very early stages.

[Barack Obama]

Personally, I can recommend ePSXe for both playing games and ripping them.
Making savestates is easy too, I think it was F1 and F2 for switching save slots and saving.
And as far as I remember, renaming the savestate file extension to .gz and unpacking them with Winrar makes it possible to view the memory contents in PSX-VRAM just by dragging the file into the tool window.