HDD spins when DVD playing

Grand Evening,
I’m playing a DVD, why is the HDD running ? Is it the way it works ?, is it a known issue that one can fix ??
If the DVD is soft music one does not want to hear the hard disk running as background noise.
Many thanks.

Seems this is not an easy question to answer. I did listen in a shop to another Panasonic player, similar model without the VHS par and the HDD on that I could not hear… Can you hear your on HDD when listening to a DVD ???

Are you sure it’s the HD and not a cooling fan? BTW, the HD will likely be running all the time anyhow. At least when the unit is on. Some of them run 24/7 whether the unit is on or not.