Sony PMW-100 Operating Instructions Manual page 21

Note
If copying is done using Explorer (Windows) or
Finder (MAC), the continuity and relationships of
recorded materials may not be maintained.
Maximum duration of a clip
The maximum clip length is 24 hours for FAT
(MP4 or AVI) and 6 hours for UDF (MXF).
If you exceed the maximum clip length, a new
clip will be automatically created. You can
check the new clip on the thumbnail screen.
Basic Operation Procedure 21