About the Author and this thread - ARR is a former Shaw employee who worked for several years assisting the Star Choice team that developed and tested the Star Choice DVR530. He previously posted on the Digital Forum as digitaldude.
This is a revisit of a topic discussed in previous posts and hopes to shed some clarity for those interested.
DISCLAIMER: If your unit is under WARRANTY, then this procedure is NOT recommended.
A little history:
The very initial hard drive in DSR530's were Maxtor, but never went into production with that model as it proved unreliable and not up to the task.
The CE version was chosen for it reliability and performance.
Read the specs here: http://www.seagate.com/docs/pdf/datasheet/disc/ds_ce.pdf
A little known fact is that ~ 30K 'special' dsr530's were shipped with the Seagate 250GB hard drives for in house use at a major N.A. auto manufacture that operates their own DCII transponder and had been using Moto DSR4XX units, but needed a DVR and the 530 was the ONLY DCII DVR around.
While its easy to criticize Moto/*C for selecting the 160GB, initial plans which I took over spec'ing originally had the 80GB and the 120GB was only a consideration as they were being used by the cable HD PVR's and only recently in the DCT6416 went to 160GB. I examined the cost and made a case for our current 160GB, so be thankful we got that.