Chown for mounting pocket drive

I've mounted a Western Digital "My Wallet" in my home directory. I had to chown to get access to the folders but still can't get access to the files. I've tried chown on the files as will as chmod 0755. It tells me Permission denied and Operation not supported.
I was in root when trying this. Thought I should mention that.
How can I fix this?
This is what permissions look like:
[root@ihermit Ajax For Dummies]# ls -la
total 8552
drwx------ 1 ihermit root 0 Aug 12 2012 .
drwx------ 1 ihermit root 0 Aug 12 2012 ..
-rw------- 1 root root 8748114 Aug 12 2012 Ajax For Dummies.pdf
-rw------- 1 root root 6656 Aug 12 2012 Thumbs.db
Thanks
JohnP

What filesystem is this on?  If it is NTFS (which I suspect), then it is not writable because Arch Linux does not automatically come with ntfs-3g like other "user friendly" distributions.

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    "Hello, I have a Mac 733 Quick Silver computer and I just installed my
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    cable. Can you help me? THANKS!
    Darren"
    His response:
    "Darren, Two drives is the most you can get with standard IDE.
    Dave"
    Did I ask for the wrong cable. From what I understand the QuickSilver can accomodate up to 4 internal drives. I would prefer to install a cable: 5 connector 4 drive than install a card.
    The cable that I am using now for the 2 drives is APPLE P/N 590-2253 REV A
    FOXCONN P/N FC80C17-00 K 0115. On the white lable is 080-0003-192 FOXCONN.
    TIA

    Hi
    Unlike SCSI, each IDE/ATA channel can only support a maximum of two devices, hence there isn't such a thing as a 5 connector 4 drive IDE ribbon cable. The options for a third ATA drive are:
    1. Mount it in the bay intended for a Zip drive (beneath the optical drive). Apple don't recommend this though due to possible heat issues and the bus is slower, being ATA/33 rather than ATA/66, which may affect performance.
    http://docs.info.apple.com/article.html?artnum=58200
    2. Mount it in an external firewire enclosure which can be bought separately (driveless).
    3. Buy a Mac compatible PCI card containing another ATA controller. These typically have two channels, each channel supporting two drives, for four drives in total.
    4. Replace the ATA drive with a SATA drive and buy a Mac compatible PCI card containing a SATA controller. These typically have two channels, each channel supporting one drive, for two drives in total. They can be used in conjunction with the two ATA drives on the inbuilt ATA controller though, and four channel versions are available supporting four drives.

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