Re: Make a working copy from an export

Andrey Repin wrote:
> Greetings, Les Mikesell!
>
>>>>> You can get laptop-sized USB-powered external drives all the way up to
>>>>> 500Gb these days so portability isn't a huge problem. The quick-fix
>>>>> here might be to simply zip or tar -z the working copy if that will make
>>>>> it fit, though.
>>> Since the data is his music library, this is likely mp3 or m4a files
>>> which are already compressed. Zip won't be able to compress them any
>>> further.
>
>> Are any of the common compression techniques good enough to notice that
>> you have 2 copies of everything? Zip wouldn't because it handles each
>> one separately.
>
> 2 copies of what? Where you saw that he have duplicates in library?
> If you want to make differential/sequential archive, you could use rar.
> Also, rar and 7z support solid compression (God! I think only zip don't
> support it yet!)

A working copy has 2 copies of each unchanged file - the visible one and
the hidden pristine copy, which is the cause of the size problem in the
first place.

-- 
   Les Mikesell
    lesmikesell_at_gmail.com
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