[Koha] A hint for tutorials

[Rafael Carrascosa]

Hello,
Im trying to import a CDS/ISIS data base to koha by first converting
it to MARC format. The tutorials in the kohadocs do not apply to my
case or i cant make them work properly.
I think im lacking documentation, specially about the structure of a
MARC ISO file VS the structure of a CDS/ISIS ISO file.
Does anyone have links that can help me?
Thanks in advance,
Rafael Carrascosa