Don't convert. Use the originals.
Go with Jim's advice, you only need to transcode if you have PC/MAC problems with playback
Copy the whole SD card (including the directory structer intact) onto your hard drive
In Premiere import all clips into the project, then in the source window select one clip, hover cursor over selected clip, right click and select new sequence from source.
Premiere then create a sequence based on the clip settings.
Let us know how you get one
A minor addition to Col's third paragraph - use the Media Browser to locate and ingest your clips. That way you will see only the video clips themselves, but the necessary meta-data will also be read.
Many thanks guys! It all works great now. Ciao for now,David
Glad you are sorted and glad you gave us the feedback