LRC Archive, macOS & StuffitExpander

[Warrick17435859yi29]

First time visiting the community.  I would greatly appreciate your help with a question.

I run LRC (Release 12.1) on an Apple M1 Max (Ventura 13.1).  All has worked well until a few days ago.  Then, when trying to close LRC after an editing session, and so backing up my archive automatically, I received a message that my Archive exceeded 4 GB.  I'd not seen this message before, and didn't understand the significance, so I clicked the "more info" link.  From what I found to be a vague message, I concluded that Adobe will not be able to read archives created on a Mac that exceed 4GB, and that I should therefore download  third party compression software, with options mentioned including StuffItExpander.  The same notice suggested this might not apply to LRC 6.8 or later, but this is a bit fuzzy, and I continue to receive the message.

Can I just ignore the message, and continue as in the past?  If so, how do I remove the message?   If I do need to take extra measures, and so download Stuffit Expander or similar, do I need to change any settings in my Mac, LRC, or both to return to seamless archiving?  Or will I have to manually activate the compression software every time I want to add something to my archive, or to access the Archive?   

Grateful for any guidance you can offer.

Thank you, Warrick

[Rob_Cullen · Accepted solution]

Your catalogs and LrC will continue to work OK if you ignore the message.

Your Catalog backups will also continue to work OK.

It is only in the situation where you might have to Restore from a backup catalog (because of catalog corruption) that you will need an additional 'Expander' app (Stuffit?) to unzip the catalog that is >4GB.

It's a Mac thing only with catalogs >4GB- doesn't affect Windows systems.

[Warrick17435859yi29]

Thank you for your clear explanation.  It would be nice if Adobe revised their notifications and related "explanatory" links to provide a comparable measure of clarity. Cheers

[Jao vdL · Accepted solution]

It's a completely useless message even on Macs as Mac OS X has a built in zip utility in finder that deals with expanding the zipped backup catalogs of over 4 GB just fine. You don't need another utility and they don't need to warn you.