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   rec.audio.tech      Theoretical, factual, and DIY topics in      41,683 messages   

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   Message 41,089 of 41,683   
   Mort to Dick Pierce   
   Re: Problem With Audio SD Card; Need Adv   
   24 Jan 13 16:05:27   
   
   From: mort@cloud9.net   
      
   Dick Pierce wrote:   
   > Mort wrote:   
   >> Hi,   
   >>   
   >> I recorded a piano recital, with permission, and ran into a problem   
   >> that I never had before. The music is on an SD card, WAV, 16 bit, 44.1   
   >> khz = CD book specs, and it plays back directly in my Windows PC. The   
   >> card is a SanDisk 8 GB. regular card, a type that I never had trouble   
   >> with in over 200 recordings.   
   >>   
   >> However, none of the tracks will copy to my "music" file on my hard   
   >> drive, not in 3 different computers. Each track copies about half way,   
   >> and then hangs up.   
   >>   
   >> Is there any way, either by myself or through a music tech person,   
   >> that I could get this recital burned to a CD-R?   
   >   
   > How long is the recording? If the WAV file is larger than 2 GB,   
   > there are a number of "music" programs that have a bug in them   
   > that will prevent them from opening or otherwise managing a WAV   
   > file.   
   >   
   > The bug exists because the WAV spec defines the maximum chunk   
   > size as a 32-bit UNsigned integer (which means it can be up   
   > to 4 gB), but an awful lot of programs use SIGNED 32-bit integers,   
   > which allow only 2 GB maximum.   
   >   
   > THis may or may not be your issue: but if the file is VERY large,   
   > it could be this is your problem.   
   >   
   >   
      
   Hi Dick,   
      
   The program is about 82 minutes (at CD book specs), and after   
   correcting, I needed to burn to 2 CD-Rs as it just did not fit onto one.   
   However, I have recorded many concerts that ran longer than this, with   
   no problems. The only other factor is that this was my first recording   
   with an 8 GB SDHC card. I previously used cards up to 4 GB, but now the   
   8 GB costs less than the 4 GB. In my recordings, I can get 3 hours of   
   music on a 2GB card, so I did not exceed that 2 GB threshold.   
      
   I am hoping that I just had one single bad SD card, but time will tell.   
      
   Thank you for your interesting post.   
      
   Mort   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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