Resolving Error 0
Another common problem with Apple computers and external or portable hard disk drives is Error 0.
This is an “unidentified error" and often occurs whenever you attempt to transfer files that are too big for your Mac to handle.
For instance, you might have a video file several gigabytes in size that you are trying to copy to or from your portable device. It might be that you need to find another means of copy the file (perhaps burning it to disc) or break the data down using a file splitting utility.
Various satellite issues can make matters worse. For instance, if you are copying data to an external device formatted with the Microsoft FAT32 structure, you will be unable to add any file larger than 4 GB.
Additionally, container formats can cause further problems. It isn’t unheard of to be able to move a 40 GB .iMovieProject file to a portable hard disk and then be unable to copy a smaller file – all due to the fact that the larger file is in fact made up of many smaller ones.
In some cases, rebooting your Mac may be an option, but in the majority of cases either split the file (using a tool such as www.hjsplit.org) or format the disk drive (using the Mac Disk Utility) for exclusive use with your Mac or in NTFS format, thereby allowing you to copy larger files to it and avoid the dreaded Error 0!