Thank you to all that have taken the time to reply and to make me feel welcome. I have taken your suggestion on board, I used FMP years ago to solve an issue, but had forgotten about it, so Fulvio, thank you for the memory jog, it's very likely what I need to explore.

Hello All,
            I am fairly new to collecting and I am seeking a program that will allow me to catalog in a specific way if possible.
I would like to have the ability to have a "collection" for example consisting of a "main collection" which would then contain sub collections (eg Investment, Personal Interest, Special Releases) and under each sub category then have two further sub categories for "series" then finally the coins of that series. I have looked at several programs, but they all seem to only allow for a single collection, then each coin is listed within it, without the flexibility of being able to keep track of coins already obtained that are part of a "series release"
If anyone can suggest a program that will allow me to catalog in the way I desire, I would truly appreciate the suggestion of which program to seek out. The ability to keep track of the coin release number etc would be a real bonus as I tend to purchase mainly coins with very low mintages.

Thank you in advance to anyone taking the time read this or responding to it, also for putting up with my somewhat long winded description.