USB flash drive cannot be mounted-HELLp!!

Hello, I am wondering if anyone can offer insight as to why a USB flash drive won't mount anymore. Some time back it used to work, then it wouldn't even appear in Disk Utility. I reformatted it FAT32 on a Windows machine, and now can see in DU and System Profiler. However, I can Verify or Repair, but the MOUNT button in Disk Utility remains grayed out.

??????

I want to transfer music between computers, so this is really annoying me.

Meanwhile I also have a USB-SD adaptor. With that, the light comes on connected to a PC, but with either of 2 SD card which worked previously, it is not seen under Windows or OS X Disk Utility. Does that mean the adaptor just went bad?




USB 2.0:

Capacity: 983.8 MB
Removable Media: Yes
Detachable Drive: Yes
BSD Name: disk1
Product ID: 0x1c50
Vendor ID: 0x13fe (Phison Electronics Corp.)
Version: 1.10
Serial Number: 0700907207000B56
Speed: Up to 480 Mb/sec
Manufacturer:
Location ID: 0x4b200000
Current Available (mA): 500
Current Required (mA): 200
Mac OS 9 Drivers: No
Partition Map Type: MBR (Master Boot Record)
S.M.A.R.T. status: Not Supported
Volumes:
HEADS:
Capacity: 983.7 MB
Available: 979.3 MB
Writable: Yes
File System: MS-DOS FAT32
BSD Name: disk1s1
Mount Point: /Volumes/HEADS

Update: by accident, I see it mounted on the desktop, but not on the left pane of a Finder window. I dimly recall that might be some kind of idiot settings or preference issues, anyone remember?

Head_Unit said:

Update: by accident, I see it mounted on the desktop, but not on the left pane of a Finder window. I dimly recall that might be some kind of idiot settings or preference issues, anyone remember?

Click to expand...

Ah, my savior!! So many thanks.

It had somehow changed to "-" instead of a check mark. Why the heck would that be? And what does "-" mean?

And anyone have advice about the never-seen SDs? Just time to trash the adaptor?

With a PPC Mac Firewire is better choice for transfers and back ups and essential if you want to boot from the back up.