Error: multiple rows in singleton select

[Tester]

I got this error when I want to add a rompath

Error: multiple rows in singleton select
At procedure 'P_UPDATEROMID' line: 11, col: 3
At procedure 'P_LOADFILES' line: 82, col: 1
multiple rows in singleton select

GDS Code: 335544652Error Code: 332

This is the dat and rdt file

http://www.mediafire.com/?cjxclezltt9a97v

[Tester]

I did find the bug in RomCenter, the dat file contains roms with the same CRC but different md5/sha1.
I did remove the md5 and sha1 attributes and then it works, the rompath was successfully added and all roms are found. But this not a fix, because the md5/sha1 in the dat file was not wrong.

[danaesigler]

I also experienced this one.