Storage Limit incorrect

OK, to accomplish this you need 2 hings:
1. A micro sd card. (Which I gather you already have one)
2. File manager installed in your tablet.

Now, if the tablet support micro sd card, you are all set. Download the file manager, it could be Astro, ES File Explorer, etc...
Once installed, open the file manager. The tablet storage, which is known as internal storage, it is display as sdcard/storage (or sometimes as internal storage). Once you tap the internal storage, everything that is installed in your tablet will be display; (Android, DCIM, etc...) Now you need to look where are the pictures or films saved at. It is usually DCIM/Camera. Once you have found the pictures that you want to move or copy, long tap the films, depending on the file manager app, you must tap copy or move (NOTE: Since every file manager is different, some takes a little bit of extra steps, others requires for you to open a menu). Once you had chose to copy or to move it, look for the external sd card location, which will also be located at sd card/storage/ (32gb external storage) and choose this location to paste your films or pictures.
Another way is by using a computer. Make sure that you have all the drivers needed for the computer to recognize your tablet, you also need the usb charge cable. Once the computer recognize it when the tablet is plug in to the computer, open it by double clicking, there should be 2 storage display under the tablet folder: Internal storage and 32gb. external storage. Open the internal storage, look for where the films are saved (just like I explained with the file manager), choose the films that are to be move or copy, and jus drag and drop or press ctrl and C to copy, go to the external storage, open it and press ctrl and V to paste.

You can add up to 32gb card with the 16gb on board memory

just a suggestion but a few years ago is aeons in tech time maybe, just maybe the drivers for that ext drive were overlapped with OS X migration?

check apple site for more or ext drive site for latest drivers

Hi
How to Unlock iPod Volume Limit

Your iPod volume can be limited, and in many instances, a PIN number will be necessary to remove the limit. If you've forgotten or misplaced your PIN, you can still unlock your iPod volume limit using your computer.
1 Connect your iPod to your PC. Make sure your hidden folders are visible.
2 Navigate to the "iPod_control" folder. This will be a hidden folder. Once you've found the "iPod_Control" folder, navigate to the "Device" folder.
3 Locate the file named "_volumelocked" in the "Device" folder. Delete this file.
4 Eject and restart your iPod.
5 Navigate to "Settings" on your iPod. Select "Volume Limit." You'll be able to reset your volume limit with a PIN or password.

Tips & Warnings
Do not listen to your iPod at high levels for long periods of time; doing so can damage your hearing.

Could be a power issue at the USB port Try another USB port, also disconnect any other USB devices and try again

you may have too many files, the kenwood units will only handle 65025 files or 50 folders containing 255 files maximum.

surely this is a firmware problem that seagate usually has,sometimes the drive cannot be detcted by the pc or even bios,and sometimes the drive detcted by the pc as 0GB or less capacity,you should find a tool such as HD Doctor for Seagate to repair it.Or you can go 2 a DR company to rewrite the firmware.

1. Try to delete all your temporary files from C:\Documents and Local settings\your document\temp folder. If it is hidden, in the menu bar click tool, folder option and then click the option button for Show hidden files and folders.
2. Try reinstalling your software. 
3. Run your anti-virus maybe a virus is blocking it.

Use a FAT32 Formatted partition (32GB) on your external USB Harddrive as the main Master Download Area. To do this, connect the drive to the PC by USB and re-partition the drive in sections with the disk manager. 32GB for the FAT32 and the rest in NTFS. Re-connect the drive to the WL500W USB and the FAT32 partition will be recognised automatically by the Router. Linux users can use the full HD drive if they format the drive in Ext2/Ext3. Correctly formatted USB memory sticks with a capacity of 32GB are better suited for this un-attended (low power) dowloading. You can use a (FAT32) 8 Gbyte stick also !

Warning !

Using only NTFS partitions will make the drive read-only and useless for un-attended downloads by the WL500W. Unfortunatly this is the case with 100% of all new availbale drives (>500GB) - So RE-PARTITION it wisely !!!

What about Queing (Waiting) ?

It waits for the connection and if bandwidth is available it starts the download. If files are missing on a server or the address is invalid an error is risen and the link is aborted or deleted. Many BitTorrent files are invalid or have nobody seeding. Waiting is therefore the best option.