O&O DiskImage 7 User's Guide - O&O Software

Settings for drive imaging
The image file can also be split at a later time using the Convert image file function. It is, however, recommended to
split images at the time they are created to avoid any confusion that may arise.
• Under Drive imaging/Imaging options/File size/Split image into smaller files with fixed sizes you can specify
the size of individual image files.
Encryption
Your data can be securely encrypted using the recognized AES method. This permits O&O DiskImage to provide your
image with an extremely high level of security with a key length of up to 256 bits.
• You can select the encryption level for your files under Drive imaging/Imaging options/Image file/Security.
• If you then start the imaging process (Drive imagings), enter a password when being prompted.
A belated encryption of the image is possible under Convert image file.
Compress image
Under Drive imaging/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.
Exclude files from an image
Note: Several minutes may be needed for excluding files, depending on the amount of data on the hard disk.
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