Sony DCR- TRV24E Operating Instructions Manual page 85

Frame by frame recording
– Frame recording
Note
The proper remaining tape is not indicated if you
use the frame recording function continuously.
When the POWER switch is set to MEMORY
(except DCR-TRV16E/TRV116E)
You cannot use the frame recording.
When using the frame recording function
The last recorded frame is longer than other
frames.
85