.B01 File Extension
BlindWrite CD Data Segment File
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What is a B01 file?
A B01 file contains a segment of data copied from a Compact Disc (CD) and split by BlindWrite disc burning software. It stores the second part of a larger collection of data copied from a CD for backup purposes. Segmented data stored in a B01 file is typically software or audio data.
BlindWrite can read, write, and back up CDs, DVDs, and Blu-ray discs. While more recent versions of the software no longer create B01 files, you may still encounter the files if you split data from an unprotected CD into multiple segments with an older version of BlindWrite.
In this case, you will most likely find a .B00 file and possibly a .B02 file in the same folder as the B01 file. These B00 and B02 files also store data segments from the same disc that make up the whole data.
The reason older versions of BlindWrite would create segments of data is to reduce the size of the backup files into smaller, more manageable file sizes. Each segment of the CD data was given an ascending number extension by BlindWrite, which starts with B00, then B01, followed by B02, and so on. However, as storage space has increased over the years, the use of these segmented files declined and the files were eventually removed.
How to open a B01 file
You can open B01 files with BlindWrite but you need all of the associated files (B00, B02, etc. if they exist) to restore the data to its original, complete state.