I have a feeling that card in simply not compatible with the old D200..
try using one of compatible memory cards below, hopefully that might work out
The Nikon Quality Department has tested the following cards and approved their use in the D200 Digital SLR:
Sandisk
SDCFB 128 MB, 256 MB, 512 MB, 1 GB, 2 GB, 4 GB
SDCFB (Type II) 300MB
SDCF2B (Type II) 256MB
SDCFH (Ultra II) 256 MB, 512 MB, 1 GB, 2 GB, 4 GB, 8 GB
SDCFX (Extreme III) 1 GB, 2 GB, 4 GB
Lexar Media
Entry-level CompactFlash cards 128 MB, 256 MB, 512 MB
High speed 40x with Write Acceleration (WA) 256 MB, 512 MB, 1 GB
Professional 40x with WA 8 GB
Professional 80x with WA 512 MB, 1 GB, 2 GB, 4 GB
Professional 80x with WA and LockTight technology 512 MB, 2 GB
Microdrive
1GB...