Hi
Ico-man,
I think
tino_pira is quite aware of the solution as provided by you (in fact he/she more or less mentioned so in the very first line of the post), but his/her question really is if it is possible to use something else
instead of "CD%" as part of the filenames (apparently containing the significant (distinguishing) element not necessarily at the last position of the filenames).
So
instead of the filename-convention
fileCD1.avi ....
fileCD2.avi, another (perhaps user-definable) "pattern" to indicate a sequence. E.g. like the names he/she gave by way of example, viz.
file(1 parte).avi ....
file(2 parte).avi.