I was told that it’s common to convert AVCHD files, as they’re a difficult format to edit in. AVCHD files are compressed, so for premiere to work with them, it first has to uncompress, and then work with the footage including any effects, plug ins etc.. so its more taxing on the cpu than dealing with uncompressed files.
Deleting the old files will work for now, but I’m trying to figure out what I need to do when I’m working on a longer project, or even multiple projects at once. How much storage does everyone typically need?