UH O, GOT A BAD FREQUENCY. when trying to verify a rom

[LeWoY]

D:\MAMEHub\MAMEHubRepo\Binaries\dist>csume64 -verifyroms rtype3
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 960.516000
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 960.516000
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 976.562500
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 976.562500
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 976.562500
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 976.562500
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 976.562500
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 976.562500
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 59.541985
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 59.541985
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 36.621094
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 36.621094
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 244.140625
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 246.093750
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 16.683350
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 16.683350
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 59.541985
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 249.689244
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 3970.000000
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 249.689244
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 36.621094
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 36.621094
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 36.621094
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 36.621094
UH O, GOT A BAD FREQUENCY. CHECKSUM ERROR MIGHT HAPPEN: 36.621094

Is it supposed to do this when verifying a rom ? i dont see how this would be related to speed or desyncs... :/