While our system was not a MP3 player we found we had to qualify CF cards as time went on. The issue was in the firmware of the controller that we didn't write the code to. In our case there is no cure available.
I'm experiencing a compatibility problem between the Edirol R-1 and Standard grade Type1 SanDisk cards. These are semi-industrial upgrade cards with better performance specifications.
SANDISK 2GB CompactFlash (CF) - EXTENDED (INDUSTRIAL) TEMP, STANDARD GRADE SDCFBI-2048-201-00. Specifications at http://www.siliconsystems.com/pdf/SiliconDrivePCCard.pdf
Here's the checklist:
- The R-1 works perfectly with other cards (consumer grade SanDisk + other brands)
- The SanDisk Standard grade works perfectly with other devices (formatted and used by digital camera, computer)
- It is recognized and usable through the R-1 when in USB mode (connected to comp.)
- It is recognized for formatting by the R-1, which yields the message 'formatted', although instantly upon pressing 'enter' (??)
- When transferred to camera at that moment camera yields message 'card not formatted'
- The R-1 accepts the 'rec standby' mode and displays the correct recording time (!)
- It refuses to record and switches to message 'no song' instantly; there are no error messages
Anyone who has experienced similar problems and solved them ??
Thanks for your replies!