Diki,

Yamaha has always had a small amount of RAM memory available, but keep in mind it has always been sufficient enough to atore up to 30 style files, plus a huge number of registrations. However, in recent years they've overcome this problem by modifying the software for their MFD, which now allows user to access files directly from their USB drive, thus the number of available, third-party styles is virtually unlimited. The loading time of style files is usually less than a second, depending on their size and complexity.

Cheers,

Gary