Sd Card Transfer Rate

Hi guys,

I'm looking at buying an SD card which I plan to format as ext2 (or ext3) and use for program installation/file storage, leaving my harddrive free for videos/mp3s/backups etc.

There seems to be a vast difference in advertised transfer rates for example:

Crucial 2GB, £16.44, (Minimum Transfer Rate): 6MB/s (40X)

Transcend 2GB, £22.74 (Maximum Transfer Rate): 22.5MB/s (150X)

My question is, will the difference in transfer rate really make a noticeable difference? Will my Zaurus actually be capable of making the most of this rate, or does it have its own limiting factors?

Specifically, I'm hoping that by installing XQt and Thunderbird on the SD card it will bring a marked improvement over my current setup, which is using meanie's cramfs images on the harddrive. Currently XQt seems fairly responsive, but Thunderbird is sluggish to the point of ridiculousness.

I've not been able to find anything about this on google or in the forums; the closest I've found is this page: http://www.tyrannozaurus.com/?q=wiki/SDCompatList

Unable To Restore Backup

I'm a new C3200 user, and I'm currently attempting a full-reset of my figlabs-supplied C3200, using the instructions here:

http://figlabs.com/catalog/ug-return-to-box-state.php

However, I am unable to restore the english backup supplied with the machine. I've placed the relevant file (named figlabs_0-15.backup_SLC3200-JP-unknown) within a directory named Backup_Files on the root of my CF card, but when I select the CF card from the drop-down in the backup/restore app, a japanese language dialog pops up with a single "OK" button. When clicked, the dropdown is cleared of an entry, and I cannot proceed.

I also tried putting the Backup_Files directory on the root of the hard drive instead, and selecting the first item in the drop-down, but the same error message appears.

A screenshot of the mysterious error is below. Can anyone tell me what it's saying and, more importantly how to restore my Zaurus?

 scrn001.png ( 25.61K ) Number of downloads: 58