It looks like the WD AV-GP drives, the WD30EURX for example, have been discontinued. Retail sites mention that the Purple Series replaces the AV-GP series. If so, the information and spec sheets for the Purple drives make no mention of DVR use and talk at length about surveillence system usage. The old AV-GP info sheets did mention DVR applications several times.
Does the Purple series really replace the AV-GP series?
Will the Purple drives work fine in TV DVRs (where the older AV-GP drives did work)?
If so, why are DVR applications not mentioned in the spec and info sheets for the Purple series?