This is exactly what I'm talking about. The CRC column shows the CRC of each file in the archive. Now compare those numbers to the ones in the DAT file I posted. It would be even more helpful if you could post a screenshot of the archive. (The WinZip window and all.) All right. I know what the prob is...the numbers from the DAT file (mine is named asr) from the ssv_p1.rom don't correspond with the ones in the ssv_p1.rom file. So how do I change the ones in the CRCs? (the right numbers in the DAt file are 8A86C728). The emulators says it can't find those exact numbers. (the only diffrence is that the A isn't capital when the emulator shows it) Whether the letters are capitals or not shouldn't be a problem. Hmm... The CRCs should just match. So HOW do I make the ssv_p1.rom file number match with the one in the DAT file??? 1. Open up the DAT file with NotePad or some other text editor. 2. Open the SSV archive and look at the CRCs of the rom files 3. Change the DAT file so that the 8-digit numbers (CRC values) match the ones found in the CRC column in WinZip. I.e. The CRC for ssv_p1.rom is 8A86C728. So, open the DAT file and look at the CRC value of ssv_p1.rom there. If the numbers aren't the same, change it. Check every file. (P, S, M, Cs and Vs) The numbers in the DAT file are good. It's the rom that has the wrong number (661afbix instead of having 8A86C728). (The ssv_p1.rom in the rom SSV.ZIP dosen't have the right number the emulator shows. THE DAT file does) So what i'm askin is how do I change the CRCs in SSV.ZIP and not the CRCs in the DAT File since they are correct.