Sometimes this can come from too long file names, especially on classical discs. It may help to put the iso file and the extracting software in a folder that's not itself buried in several other folders (and thus making the path name longer), like putting it directly on the first level of the hard drive the files are on (I hope that makes sense to you). But sometimes a path name can be just too long (S:\_Musik-Archiv_Klassik\Beethoven\Sinfonien (24-192) - Simon Rattle, Berliner Philharmoniker\Beethoven - Symphony No.6 (24-192)\05 - 5. Hirtengesang Wohltaetige, mit Dank an die Gottheit verbundene Gefuehle nach dem Sturm- Simon Rattle, Berliner Philharmoniker.flac). Were the discs you ripped before only stereo? And are you now maybe ripping stereo/multichannel hybrid discs? I noticed that some stereo only discs ectracted very fast, while most st/mch discs take much longer to extract, using much more processor power. If I'm not mistaken, the DSD signal on the latter kind uses another step of compression, which has to be de-compressed during extraction. That's why it takes longer and puts some strain on your computer. 10 minutes doesn't sound unusual to me.