I noticed while writing a file loader for Cineon files (anyone waiting for this?) an annoying misfeature of the file magic detection. I was testing for a long value in hex with the top bit set. Unfortunately, the value to check is loaded into a (signed) int variable, and strtol() fails because the value overflows, and so the magic number is not detected. (In fact, the file contents are compared with 0x7FFFFFFF.) I looked at the code, but didn't change anything because it also allows comparisons on the magic number, so fiddling with the signedness might not be a good idea. The easy workaround is to search for a four-byte string value instead. -- David Hodson -- hodsond@xxxxxxx -- this night wounds time