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RAID has nothing to do with "backup". They are orthogonal concepts.



This is true. RAID 1 (and other RAID array types) only has the one most very basic feature of a backup. And, that's if a hard drive fails, your data is easily recovered.

For home users, this is the only feature I've seen them use.

But, nobody I know does video editing...

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If the editor scrambles your video, RAID ensures you can get to the scrambled video all the time. Backup lets you access an older version of the video before it was scrambled, but it might take an hour or two.



This is an excellent point I've never considered before... The same could be true of a user who just severely messes up his own work in a word processor or what not. Or, if your backing up your entire OS, if the OS gets messed up.

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An iMac is built with notebook components internally. This limits performance and makes them a bit more expensive than a similar PC. The Mac Pro uses desktop / workstation components.



Confusing the hell out of Eric again, talking about lower level stuff. But, one concern I'd have with an iMac is can you upgrade it's DVD drive to a Blu-Ray one? Last I checked, they weren't including Blu Ray drives. I know there are external drives, but I hate having a bunch of separate devices on my desk. Although, that's probably a better alternative than using inferior software.

Blu Ray just sounds like it'd be even more important in video editing use case than in most of the other scenarios.

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You already have windows and hacked versions of Premier are readily available. If you intend to make cutting video part of your profession.



I'm pretty sure he said he wants to start doing HD video and his current set-up isn't powerful enough for that. Thus, he's looking at upgrading...