Sony HDW-730 Operation Manual page 266

If data cannot be loaded
If one of the following error messages appears when you push the
MENU knob in step 5 (on page 4-129), then the data was not loaded.
Data load error messages
Error message
NO MEMORY
STICK
4
MEMORY STICK
ERROR (flashing)
FILE ERROR
(flashing)
4-130
Chapter 4 Adjustments and Settings for Recording
Reason
No Memory Stick is
inserted.
Circuit or Memory Stick
fault.
The Memory Stick contains
data that cannot be loaded
with this camcorder.
Action
Insert or reinsert the
Memory Stick.
Recheck, and consult a
Sony representative.
Do not try to load data
saved with another
camcorder.