Last year I purchased a Jacked up HR10-250 thru Weaknees that would record 250 hours of HD, today I've had the HR20-100 installed. Since my HR10 is now obsolete can I transplant the Hard Drive(s) from it into the HR20 to increase the storage capabilities? Is there a better route to take in order to increase storage? I'd prefer to have internal storage but am not limited to it? Thx for the guidance!!