Transcend 8GB JetFlash V30 Pendrive Device shows Used Space and Free space 0 bytes.

There are two possible
1. Damage to partition table
2. Damage to firmware

To fix the Transcend flash drive, you can use the JetFlash Online Recovery software, customer support from Transcend. This program can be used to save data, repair damaged partition table and damaged firmware.

JetFlash Online Recovery, you can download here Transcend Customer Support

How to use JetFlash Online Recovery, and analyze damage to flash drive, can you read in my blog. To find my blog, how:
Write a keyword in Google seach engine "Aplus Computer Fix Transcend Flash Drive". Analysis and how to use the JetFlash Online Recovery can you read in my blog.

Hopefully this information helps

Hello, from my understanding, such pen drive problems could be caused by RAW file system error and virus infection, etc. as with yours, merely go see whether this flash drive is also displayed as RAW file system in Properties. If so, with important data reserved on this RAW flash drive, merely download RAW format pen drive data recovery software to take everything desired back. And then format it to convert RAW to NTFS.
But, if you only find it is shows 0 bytes used space and 0 bytes free space, go check whether it is virus infected.
Hope these words are not too late for you.
ehow.