Field to separate diferents types of formats

My blurays collection consists of the following formats:
Full
Full custom
Full custom (improved incluiding better audio or video)
Bluray remux
Bluray remux (improved better audio or video)
Jmbd
Jmbd (improved by the example incluiding better audio or video)
M2ts

I rename it nameoffilm (year) [Full custom +A DHMA 7.1).Bluray.iso[/align]

What field can I use to enter this information and then be able to list them according to the format?

Thanks in advance