Sony PCV-RS730G - Manual (Page 124)

Why does my computer seem to slow down when I play a Video Capsule?
Your computer may respond slower if you try to play back a Video Capsule while recording a TV program with Giga Pocket.
During a timer recording, Giga Pocket may interrupt or stop your Video Capsule playback to prioritize your computer's
resources for the timer recording. If this occurs, wait until the timer recording session has completed, and then play back
the Video Capsule.
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