Probability of error for the fixed-length source coding of general sources

We consider general sources in the sense of Han and Verdu (1993). The information spectrum approach developed by Han and Verdu has played a central role in the analyses of general sources. We investigate the asymptotic behavior of the probability of error for the fixed-length source coding of general sources. Han (1998, 2000) characterized the minimum r-achievable fixed-length coding rate. Our aim is to give an alternative expression for the minimum r-achievable rate.