it seems that i found a solution for that issue. k, not a real solution but i think i got behind the myst why i got the crc errors on some files:
first of all, when i create a sfv file with hksfv manually, i'll get the same checksum for the file as found in the original sfv file. but when i now check the new sfv file, i'll get the error again.
after i moved the files to another hdd, the crc error is gone.
so it seems that the hdd has some errors and all files are crc ok
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