Wait, what? Did you produce a match by faking CRC? That is BAD PRACTICE. Changes CRCs is easy, which is why people have to put additional hashes like SHA-1 in datfiles. Unless you can prove the match is legitimate by hex comparing for sensible value changes, you just poisoned your collection.
*Edit, it's a small textfile, so much less chance of making false matches.. maybe you fixed a CR/LF?
Sorry, thought you were linking to a hash manipulator service, before I realized it's a simple checker tool. I use HashTab [You are not allowed to view links]
for easy local file hash checking.