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Re: Sound Devices 722 question

Subject: Re: Sound Devices 722 question
From: Walter Knapp <>
Date: Mon, 18 Jul 2005 14:18:39 -0400
From: "doctorvandermast" <>

> 
> I've been playing with an SD 722 this weekend and have a question about 
> transfering files via Firewire from my Mac OSX to the 722's internal hard 
> drive. 
> WAV and MP3 are the 722's native file format, and you can transfer files both 
> ways between the computer and the 722.
> 
> This works OK except for one thing, and I wonder if there are any experienced 
> 722 users on this list who would have a suggestion.
> 
> Each file transfered from my Mac ends up on the 722's directory as two files. 
>  
> The first one reads and plays normally, but the second does not.  The first 
> file's name is normal.  The extra file's name begins with a "._" and the 722 
> says "Unrecognized File Format."
> 
> Of course, on Monday, Sound Designs will be open and I can ask them.  And 
> this is not a crucial question.  But, it's bugging me and I can't seem to 
> stop 
> trying to solve the puzzle.  Any suggestion would be welcome.
> 
> My apologies for the trivia of the question.

It sounds a little like your soundfiles have a resource fork. In spite 
of the considerable advantage of the resource fork only macs use one, 
and since macs became unix it's getting less common in macs. Think of it 
as a super metadata section. Often if there is a resource fork other os 
based systems will interpret it as two files. If your soundfiles have 
custom icons, that's the most common cause, though a great variety of 
stuff can be stored in a resource fork. Check one of the files by using 
get info on it and selecting and deleting the icon. If the icon changes 
it was a custom one.

Some mac software puts custom icons on. And most of that, in recognition 
of the problems with other os types allows the preference option to not 
do custom icons.

Note another cause I've seen sometimes is if there is no type suffix on 
the mac file. If your's are like that, try adding an appropriate suffix 
and see what happens. Again, with the advent of the unix mac os this too 
is becoming less common.

Anyway, that's a couple things to look at.

Walt




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