https://bugs.kde.org/show_bug.cgi?id=380064
--- Comment #12 from Thomas Schmitt <scdbac...@gmx.net> --- Hi, the strange speed value 4.1x seems to stem from a 1024/1000 confusion in growisofs. growisofs_mmc.cpp has: #define BD_1X 4390 // 4495.5 * 1000 / 1024 ... _1x = BD_1X; ... page2A = pull_page2A (cmd); ... hlen = 8 + (page2A[6]<<8|page2A[7]); unsigned char * const p = page2A + hlen; ... { velocity = p[28]<<8|p[29]; ... fprintf (stderr,"%s: \"Current Write Speed\" is %.1fx%dKBps.\n", ioctl_device,velocity/(double)_1x,_1x); Page 0x2A is the obsolete "CD/DVD Capabilities and Mechanical Status Page" last mentioned in MMC-3. One can ask a drive to fill it out and return it. Its bytes 28 and 29 then contain the "Current Write Speed Selected". To my knowledge, all drives return this value as kB/sec. So growisofs should divide it by 4495, not by 4390. Not K3B's fault. growisofs needs a maintainer. Have a nice day :) Thomas -- You are receiving this mail because: You are watching all bug changes.