ouch, those disks are poorly burned. I'm not sure what the scanning interval for your sony drive is but regardless, 88 and 191 max PIF's are way too high. It is also possible that you are scanning to fast, try scanning @ 4x. Probably not though as you are experiencing playback problems.
Because different drives have different reading abilities, your DVD-ROM cannot read the disk while your burner can. What disks are you using? If possible get some higher quality Verbatim or Taiyo Yuden blanks. Unless your burner is defective, you should see much improved results.