Codewords are 8 bits long and use the Reed–Solomon error correction algorithm with four error correction levels. The higher the error correction level, the less storage capacity.
While the exact number of errors that can be corrected depends on the size of the symbol and the location of the errors, the following table lists the approximate error correction capability at each of the four levels:
|
Level L |
7% of codewords can be restored. |
|
Level M |
15% of codewords can be restored. |
|
Level Q |
25% of codewords can be restored. |
|
Level H |
30% of codewords can be restored. |