2.5" Drives for TiVo BOLT?

Can anyone recommend a WD Hard Drive for a TiVo BOLT ?

Up to 15mm thick will fit, and PMR is preferable to SMR (or so most claim).

4TB if possible - 3TB, 2TB, 1TB also considered.

Hello, SalemCat,

Well WD® do recommend WD® purple for DVR’s. For more information about WD® purple hard drives.

https://eshop.macsales.com/item/Toshiba/MQ03ABB300

This is for a 3TB drive, Toshiba. Which is running very well in my Bolt.