What are the rules that acronis follows for setting tib file sizes, when creating an archive and the file size is set to "automatic"? Sometimes it creates data-DVD-sized files, around 4.2gb, which is good for me. But sometimes it creates one big tib file, bigger than a dvd (e.g. 8gb plus). Another time it created the first file as just a little too big for a dvd (around 4.6gb, I think, and then put the remaining more in a second tib file. So, I"m confused as to why it's not consistent -- what internal rules does it follow?