I've had the same happen with a client's machine. It won't read burnt disks on 10.6.8 on either an internet burner and an external burner). Yet they worked ok in other computers with a different OS. A full erase of the system and a clean install with manually moving the data back. And the disks worked ok and read fine.
(This was after trying multiple other things to try solve the issue as well. Worked through lots of different things, nothing solved it. So appeared to be something corrupted over time,….). And it's still working ok to this day. So though I can't offer an exact "why" or "what",…just thought I'd mention that. May not be the same issue as yours, but thought I'd mention it anyway. Something to try though, could be just check for updates. Then re-install Toast. I also had a feeling there was a Toast plug in that could be removed, but don't have that in front of me at the moment. (There also used to be a "toast burner" add-on that helped sometimes as well. (if I can find my notes on it from a long time ago,…..) Kind regards Daniel Sent from my iPhone 6 --- Daniel Kerr MacWizardry Phone: 0414 795 960 Email: <daniel AT macwizardry.com.au> Web: <http://www.macwizardry.com.au> **For everything Apple** NOTE: Any information provided in this email may be my personal opinion and as such should be taken accordingly, and may not be the views of MacWizardry. Any information provided does not offer or warrant any form of warranty or accept liability. It would be appreciated that if any information in this email is to be disseminated, distributed or copied, that permission by the author be requested. On 24/10/2014, at 2:44 PM, Severin Crisp <sevcr...@westnet.com.au> wrote: > Have you looked at the disk with, say, Mpegstreamclip or similar? That will > show if it really is blank. > Severin Crisp > > Sent from Sev's iPad > >> On 24 Oct 2014, at 2:22 pm, David Noel <lis...@aoi.com.au> wrote: >> >> I am wondering if anyone can give me a suggestion as to why burning a >> DVD with Toast sometime gives me a blank disc. >> >> I'm using both Toast 8 and Toast 10, and burning a disc image created >> previously by Toast. The burn appears to go normally, and Toast 10 >> even says "Disc XXX burned successfully", but on inserting the disc >> into a reader (OS X 10.6.8, 2 GHz Intel Core Duo iMac), the system >> says "You have inserted a blank disc". >> >> I actually have 2 disc burners, the internal one (now not always >> reliable), and an external Samsung one which I use routinely. I have >> wondered if the system gets confused which drive it is writing to, >> though I do check the "Recorder Settings" carefully. >> >> The problem happens quite a lot, but not always, sometimes the burn >> goes straightforwardly. Any ideas? >> >> David Noel >> -- The WA Macintosh User Group Mailing List -- >> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> >> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> >> Settings & Unsubscribe - >> <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug> > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Settings & Unsubscribe - > <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
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