[G4] Question about HD Storage

[Mel Krewall]

Yes, certainly. Heavier compression will exert much more of a load on 
the processor. DV is a minimally compressed format, so I can see why it 
was so much faster.

"May thy ball lie in green pastures - and not in still waters."
~Author Unknown

On Mar 10, 2005, at 2:40 PM, Kevin Willis wrote:

>
> On Mar 9, 2005, at 10:31 PM, Mel Krewall wrote:
>
>> It is the RAID that is helping your speed. Generally, Apple's HFS is 
>> a pretty efficient file system and will not slow down unless the 
>> files are _extremely_ fragmented. In addition, Panther added a "hot 
>> files" capability that has the operating system write the most 
>> frequently used portions of code to a part of the disk that is the 
>> fastest to access, which improves OS responsiveness. If you 
>> defragment the disk, these files would be possibly be moved, which 
>> would defeat the purpose. You should consider getting a really big 
>> disk with a large cache (e.g. 8MB). As you have probably discovered, 
>> video really eats disk space, and if you are constantly battling a 
>> full disk, it will slow things down some.
>> A faster processor would certainly improve your conversion rate as 
>> well, because DV is heavily processor dependent.
>> Hope this helps,
>> Mel
>
> Would the type of compression used affect the rate of iMovie 
> importing?  I have tried MPEG-4 Motion JPEG A and B and DV/DVCPRO 
> before I started using the RAID.  The first movie I did with the RAID 
> was in DV/DVCPRO format.  It is a much bigger file than the MPEG-4, 
> but it imported rather quickly.
>
> Thanks,
>
> Kevin
>
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