Last year I used AutoChart Live and a blank SD card to transfer my files and AutoChart Pro to convert them and it all worked perfectly. I have recently noticed people on Facebook claiming with the new units you don't need AutoChart PC because the program is built right into the unit. They are saying that you can map directly to the ZLC without needing to convert the files. That just doesn't sound right to me but I thought I would ask here. Aren't the raw files that ACL is putting onto the ZLC the wrong files for making a ZLC map? Would mapping directly to your ZLC without converting and condensing the files use up the ZLC's space a lot faster?