Hi, Does dvd+rw-mediainfo (SUSE 9.2, dvd+rw-tools-5.21.4.10.8-2) provide reliable information? In my case, it reports: $ dvd+rw-mediainfo /dev/dvd INQUIRY: [PLEXTOR ][DVDR PX-712A ][1.05] GET [CURRENT] CONFIGURATION: Mounted Media: 1Bh, DVD+R Media ID: YUDEN000/T01 Current Write Speed: 8.0x1385=11080KB/s Write Speed #0: 8.0x1385=11080KB/s Write Speed #1: 6.0x1385=8310KB/s Write Speed #2: 4.0x1385=5540KB/s Write Speed #3: 2.4x1385=3324KB/s GET [CURRENT] PERFORMANCE: Write Performance: 6.0x1385=8310KB/s@0 -> 8.0x1385=11080KB/s@2295103 Speed Descriptor#0: 02/2295104 R@12.0x1385=16620KB/s W@8.0x1385=11080KB/s Speed Descriptor#1: 02/2295104 R@12.0x1385=16620KB/s W@6.0x1385=8310KB/s Speed Descriptor#2: 02/2295104 R@12.0x1385=16620KB/s W@4.0x1385=5540KB/s Speed Descriptor#3: 02/2295104 R@12.0x1385=16620KB/s W@2.4x1385=3324KB/s READ DISC INFORMATION: Disc status: blank Number of Sessions: 1 State of Last Session: empty Number of Tracks: 1 READ TRACK INFORMATION[#1]: Track State: blank Track Start Address: 0*2KB Next Writable Address: 0*2KB Free Blocks: 2295104*2KB Track Size: 2295104*2KB READ CAPACITY: 1*2048=2048 for a blank 1-4x DVD+R, Maxell. Does it mean that the disk advertises the writing speed 8x? (See "Current Write Speed" above). The "auto speed" option in K3b resulted in the 8x speed, the burning was OK but the disk was not readable. When I forced the 4x speed then both the burning and reading was OK. What is wrong? (media, dvd+rw-mediainfo, DVD drive or K3b?) -- A.M.