Hi
I'm using discogs script sometimes, and the script writes catalog number in CATALOG field.
While default mp3tag value is CATALOG#.
So often i end up with 2 different field for the same tag field, how do i avoid that?
maybe new mp3tag introduced new field that is not compatible with the old one?
tnx
using ver. 2.40
There is no Mp3tag default value for catalog number. It's a user-defined field.
thx for clarification florian, yes catalog is not a standard tag
but still, if i go to settings, and add field, i can choose #CATALOG
I just wanted to know how to make discogs script writes in the same field, do i rename catalog to #catalog in discogs script than?
Yeah, sure. You can use any reasonable field name you want to use.
The J river software i use seems to have Catalog # as a standard field when you install that program. i added catalog # to mp3 tag by right clicking at the top and clicking customize column the pressed add new, then i put name as catalog #, value %catalog #% and field as %catalog #%. seems to work a treat
when i fetch discog tags using tag scanner software though it seems to put the catalogue numbers into ISRC field though so i end up having to transfer them to catalog # using mp3 tag
omg, 11 years later 
Hi there,
Even though it's a long time ago since last comment on this topic I would like to make a clarification for anyone who finds themself with this issue. I wanted to show the catalog number tag on a column, tried many variations, but the only one which worked was just writing down the name of the field when getting the results of a release on mp3tag software. Any of those fields are able to be shown on a column:
Make a search by Discogs ID:
When getting the results, you have to pay attention to the metadata ("Metadatos Discogs", sorry, I'm in Spanish version of the software):
You just have to write down what you want to show:
No need to type the Field (shows "Campo" in Spanish on the image), but you can do, if you want, just typing the same as you typed on Value (shows "Valor"). Type any name you want and there you are.
Hope this helps anybody out there.
Perhaps even more details can be found in the documentation:
Just 2 additional pieces of information:
"Value" allows a format string so that also scripting functions and other properties can be used.
The "Field" should be filled if data should be written back to a tag field - that field is specified here.
Thank you for that detail, because I realize now that I made a mistake, now I have to redo all the albums I had because I want them to have the catalog number as well..... 
