If the collection refers to the American model active during the 2000s:
The (short for "Mega Update") is a 78GB injection of new and remastered content. Here is the breakdown: my alison angel collection mega upd
A brief return to form. Lower output, but higher production quality. If the collection refers to the American model
I dug into the archives to find some of the earlier, less common releases that really show the evolution of her style. my alison angel collection mega upd