On Thursday, May 5, 2016 at 7:35:58 PM UTC-7, Terry Raymond wrote:   
   > I had been reading some docs in the High Voltage SID collection (Craig   
   Chamberlain ones)  that mentions the self dissolving files,   
   > one comes to mind:  .SDA  but I just dont remember the other extension?   
      
      
   This page lists pretty much all the packing/archive software extensions I   
   remember.   
   http://ist.uwaterloo.ca/~schepers/formats.html   
      
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