User Manual

User's guide O&O DiskImage Compress image
Compress image
Under Drive operation/Imaging options/Image file you find the settings Compress image file
to save storage space. You can choose from the LZNT1 Standard or theBZIP2 process.
LZNT1:This is a compression type based on the Lempel-Ziv algorithm, which is laid out on a real
time application. Speed is preferred over the rate of data compression.
BZIP2: is a block type compression process. Compression rate is preferred over velocity.
You can also compress the image after creation under Convert image file in the Tools menu.
Note:
Compression increases the time required to create an image file. However, the file then requires
less space on the disk.
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