More reliable, HD+case or prebuilt external HD?

[Camaroz06]

Hello All,
I am looking to back up my photos on an external HD (also DVD) and was wondering which is more reliable:

a internal HD + a HD case or a pre-built external from one of the big name companies?

Is there even a difference?
ALSO, I just thought of this question, whenever I reformat my main drive (RAID 0) and I install my previous spare hard drives (non RAID) the information from the spare hard drives cannot be read. I always though you could just plug and play drives as long as you were using the same motherboard as before?

Thanks,
Eddie

 

[Ockie]

Neither is more reliable.


Get the cheapest one for your budget and backup the drive onto dvd's or something, now thats the most reliable method.

 

[RoBo]

The externals seem to run cooler and are often bundled with some software