Has anyone come across error code (-50)

Question

anyone having issue with error (-50)

Answer 1

Theorem, you don't give any context as to what you were doing when you got the -50 error but I'll relate where I have seen it. I don't know if the underlying cause is the same as in the iOS5 copy operations others have reported.
Error -50 is described as being caused by an "Error in [a] user parameter list" (http://support.apple.com/kb/ht1618).
I have found it during bulk copy operations performed by dragging a folder that contained a file with a name containing  a %20 (representing a space). Presumably this was resulting in a space being created in a file copy command line and the list of parameters for the command had an incorrect additional parameter as a result. Bulk copies between differently formatted disks or where the file names came from a third source such as a file/xml etc. are probably more likely to result in these unsupported file names. Problems are more likely to be identified during bulk copies as there are more files involved. Using a command line cp -R was a workaround for me (http://support.apple.com/kb/TA20831).
There is also mention in http://support.apple.com/kb/TS3694#error50 or error -50 being caused by timeouts over USB for which they recommend direct USB connection not using any hub. I have also seen hubs cause other issues which can be difficult to believe at the time but direct connnection is worth trying if you aren't already directly connected.