nappy
Wed Jan 09 11:19:28 PST 2008
"Joe" <abc@xyz.com> wrote in message news:x22hj.6512$vX6.5858@trndny05...
> One would presume that editing work with a video file broken into pieces
> may be less than optimum.
>
> Joe
Perhaps. But if optimum means the file can be accessed at the required speed
with the required throughput then it is a nonissue because it fulfills the
requirements.
>
>
> "Richard Crowley" <rcrowley@xp7rt.net> wrote in message
> news:5ufiepF1grq5dU1@mid.individual.net...
>> "Doc" wrote ...
>>> After defragging a drive with PerfectDisk8, using the aggressive
>>> setting, I captured a lengthy DV video file. However, after analyzing
>>> the disk, the file shows to have been laid down in several chunks
>>> instead of one contiguous chunk. Why is that?
>>
>> Because operating systems like MSwin use a compromise,
>> "all-purpose", generic algorithm for determining where to put
>> files, both beginning allocations, and subsequent extents. This
>> algorithm is clearly not optimized for allocation of large,
>> contiguous files (like video and audio files). There are a great
>> many reasons for this, most of which are beyond the scope of
>> a newsgroup discussion such as this.
>>
>> This algorithm may be published and/or discussed somewhere,
>> but, like the weather, we can talk about it all we like, but there
>> isn't much we can DO about it.
>>
>> Perhaps it would be more fruitful for you to explain why you
>> are asking. Is there some issue you are trying to resolve?
>>
>