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As described above, error information may comprise data associated with one or more errors or potential errors for one or more ECC chunks. In various embodiments, error information that the secondary ECC module 304 determines may include information related to decoding, and/or attempting to decode, the at least one ECC chunk using one or more levels of error correcting codes. Thus, in one embodiment, the error information may include information from a decoder of the secondary ECC module 304 for the secondary error correcting code. In another embodiment, the error information may include primary error information determined by the primary ECC module 302 using the primary error correcting code, secondary error information determined by the secondary ECC module 304 using the secondary error correcting code, and/or additional error information related to one or more additional error correcting codes. In a further embodiment, the error information may include “outer” error information determined by using the primary error correcting code to attempt to decode the at least one ECC chunk, and “inner” error information determined by using the secondary error correcting code to attempt to decode the at least one ECC chunk. As described above with regard to the primary ECC module 302, error information may include an indication of whether or not an ECC chunk is correctable using one or more of the error correcting codes, the number and/or location of bits in error, a raw bit error rate (RBER), an uncorrectable bit error rate (UBER), a ratio of bits which store a binary zero to bits which store a binary one in the decoded data (e.g., a DC balance as described below), or other information related to decoding (or attempting to decode) the at least one ECC chunk using one or more levels of error correcting codes.

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<w:p><w:pPr><w:pStyle w:val="TPSBody1"/></w:pPr><w:r><w:t xml:space="preserve">As described above, error information may comprise data associated with one or more errors or potential errors for one or more ECC chunks. In various embodiments, error information that the secondary ECC module </w:t></w:r><w:r><w:t>304</w:t></w:r><w:r><w:t xml:space="preserve"> determines may include information related to decoding, and/or attempting to decode, the at least one ECC chunk using one or more levels of error correcting codes. Thus, in one embodiment, the error information may include information from a decoder of the secondary ECC module </w:t></w:r><w:r><w:t>304</w:t></w:r><w:r><w:t xml:space="preserve"> for the secondary error correcting code. In another embodiment, the error information may include primary error information determined by the primary ECC module </w:t></w:r><w:r><w:t>302</w:t></w:r><w:r><w:t xml:space="preserve"> using the primary error correcting code, secondary error information determined by the secondary ECC module </w:t></w:r><w:r><w:t>304</w:t></w:r><w:r><w:t xml:space="preserve"> using the secondary error correcting code, and/or additional error information related to one or more additional error correcting codes. In a further embodiment, the error information may include “outer” error information determined by using the primary error correcting code to attempt to decode the at least one ECC chunk, and “inner” error information determined by using the secondary error correcting code to attempt to decode the at least one ECC chunk. As described above with regard to the primary ECC module </w:t></w:r><w:r><w:t>302</w:t></w:r><w:r><w:t>, error information may include an indication of whether or not an ECC chunk is correctable using one or more of the error correcting codes, the number and/or location of bits in error, a raw bit error rate (RBER), an uncorrectable bit error rate (UBER), a ratio of bits which store a binary zero to bits which store a binary one in the decoded data (e.g., a DC balance as described below), or other information related to decoding (or attempting to decode) the at least one ECC chunk using one or more levels of error correcting codes.</w:t></w:r></w:p>