USB stick not recognized using OSX 10.5

I tried to use the program to write to my USB stick using OSX 10.5, but the program reported No devices Found.

I resolved the issue by changing some of the tests on the diskutil output
read_only_media is called read_only:
   Read Only:                No

The media size has the unit B instead of Bytes:
   Total Size:               1002.2 Mi (1050934784 B) (2052607 512-byte blocks)
