I think an LCF (Library Container File) will load slightly faster but unless you have massive libraries I don't think you will notice a difference.
LCFs are fine if your library is not changing but if you are making updates it is a pain to extract, update and then re-create the LCF.
External folders are much better than the embedded library when you are making changes as well.
Any file (PLN) can link to the library folder (on a local hard drive or a network drive) and when you make a change to the library just re-load it in Archicad.
With embedded libraries you will have to update each individual job separately.
Barry.
One of the forum moderators.
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