UltraISO can extract, create, edit, and convert CD/DVD image files. It can directly edit an ISO file, make ISO images from CD/DVD-ROMs, create a new ISO from files and folders on your computer, and make bootable CDs and DVDs. In addition, UltraISO can convert nearly all known CD and DVD image formats to ISO, BIN/CUE, Nero (NRG), Alcohol 120% (MDS/MDF), and CloneCD (CCD/IMG/SUB) formats, as well as burn CD/DVD images directly with built-in burning engine and emulate ISO images with up to 8 virtual CD/DVD drives. Version 9.3.1.2633 improved Write Disk Image feature, supports editing multiple bootable ISO images at the same time, clears read only attribute files when drag and drop from ISO image to windows explorer.

UltraISO can:
1. Duplicate disc to ISO file from CD-ROM.
2. Build file on hard disk, CD-ROM, net drive to one ISO file.
3. Extract files from ISO file.
4. Edit ISO file in many format (such as Nero burning ROM, Easy CD Creator, CDRWin, CloneCD, BlindWrite, etc.).
5. Make bootable ISO file.
6. Create/Edit Audio CD image.

Some details:
1. Can directly edit the ISO image file.
2. Can directly extract files and folders from ISO image file
3. Can add / delete /create new directory /rename ISO file image content.
4. Can make ISO file from hard disk document.
5. Can create CD image from CD-ROM, maintain bootable information.
6. Can process the compact disc boot information, you can directly add/remove/extract boot image of the ISO image.
7. Supports nearly all known CD image file formats (.ISO, .BIN, .IMG, .CIF, .NRG, .BWI and so on) , and converts them to the standard ISO form image.
8. May directly set the file/folder to hidden attribute
9. Supports ISO 9660 Level1/2/3 and Joliet extension
10. Automatically optimizes the ISO image file structure, saves the CD space.
11. Supports the shell document type integration, Open Image files through double clicking them or the Right Click menu of the mouse with the open dialog.
12. The double window user interface is extremely convenient to use.
13. There are rich add-on tools, you can create ALL in 1 bootable compact discs, CD image file management, even the virtual CD/DVD drive, those functions are really powerful.

Changes in UltraISO Premium 9.31 (October 16, 2008):
+) Improved Write Disk Image feature
+) Supports edtting multiple bootable ISO images at the same time
+) Clear read only attribute files when drag and drop from ISO image to windows explorer
*) Can save modified .ISZ images directly
*) Fixed a bug with making ISO image from some emulated CD/DVD drives
*) Some minor improvements and bug fixes