I read many posts here of corrupt TIB files. I have primarily used backupmypc, which also creates one large file. My TIB file is about 10 gigabytes. My data backup is about 40 gigs in size. I just discovered some new software (Viceversa), which mirrors your data, and duplicates your files individually (on an external drive, etc.). It verifies the copy process using CRC. While VV does not restore the operating system, many TI users seem to use it for data as well, sometimes with disastrous results if the TIB file is corrupt. I am leaning toward using Viceversa as my main backup, with only an occasional use of TI. At least for data files, is there any reason for putting all your data apples into one tib file (which may lose all your data if the file is corrupted), versus having software that duplicates each file individually. In a worst case scenario, you might lose an individual file rather than the whole backup.