ddxcb made a GUI interface for NandPro:

Author of NandPro GUI - ddxcb
Author of nandpro DOS - Tiros

I made this when I was bored and wanted to pass it on, Enjoy.

How To Use:
* Dev: is what type to read aka "From File: LPT: or USB:
* File: to load the Source file, like the NAND. 'Make sure the file that is loaded is in the same folder as the program or it will not work'
* options: really need to explain read, write, erase, ECC, No ECC, Fix ECC, ADD ECC.
* NAND Size: use the xbox nand size XD
* File2: Read/Write file to NAND or to File:
* Hex Start block/Count: what blocks to start and how many.
Official Site: n/a, by ddxcb on forums.xbox-scene.com
Download: here