Small Capacity CompactFlash No Longer Works in PB

[pubwvj]

Is there a known backward compatibility problem with smaller capacity (<256MB) CompactFlash cards and newer MacOS?

I have a PowerBook G4 running Tiger MacOS X 10.4.11. I keep a 32GB CompactFlash card in the PCMCIA slot as an extra hard drive which works very nicely. Today I was cleaning my office and came across several 80MB, 64MB, 256MB CompactFlash card which I used to work. I tested them and they still work fine in the cameras I used to use them with. All the cards, from various manufacturers including SanDisk, work fine in my older PowerBook G3 running Tiger MacOS X 10.4.11. However, only the 256MB card works in my PowerBook G4 and Tiger.

I also tried using a USB card reader with the PowerBook G4 but that also didn't get the smaller cards to work.

Ideas?

 

[UltraNEO*]

are you sure those cards are working?

 

[pubwvj]

Yes, the cards work fine. I tested them in the PowerBook G3 as well as cameras. The larger cards from 256MB up to 32GB work fine in the PowerBook G4. The cards smaller than 256MB do not work in the PowerBook G4.