When you made a fresh reinstall of Toast, did you follow the procedure mentioned on the Roxio forum (delete plist files, delete saved state folder) or did you just trash the app? See post #2 at http://forums.support.roxio.com/topic/122536-toast-151-still-not-compatible-with-sierra-10121/ and post #3 http://forums.support.roxio.com/topic/122973-toast-15-crashes-when-click-on-any-of-the-start-topics/ and post #2 at http://forums.support.roxio.com/topic/122113-toast-15-not-responding-on-el-capitan/
Do you have any conflicting third-party plug-ins installed? See post #17 from the last link.
Do you have Toast up and running BEFORE you insert a BD?
Then it's probably already installed on your system.
There are some more things to try... but it's better to exclude the obvious and more common possibilities before.
E.g., we can try to find out more about the appearing BD image later on.
I had originally just moved Toast to the trash but I actually went ahead and uninstalled it again just now, making sure to remove every last trace of the software, per the instructions you linked. Even with Toast completely removed, the issue is still happening.
No conflicting plugins from that list.
Toast is not even installed on the computer right now and "City Meetings 19" appears any time a blank BD is inserted.
Would an Etrecheck report be of any use to those here trying to help?
I went ahead and ran this. Here's the report:
EtreCheck version: 3.3.3 (397)
Report generated 2017-06-07 10:54:15
Download EtreCheck from https://etrecheck.com
Runtime: 1:42
Performance: Excellent
Click the [Lookup] links for more information from Apple Support Communities.
Click the [Details] links for more information about that line.
Problem: Apps are crashing
Hardware Information: ⓘ
Mac Pro (Late 2013)
[Technical Specifications] - [User Guide] - [Warranty & Service]
Mac Pro - model: MacPro6,1
1 3 GHz 8-Core Intel Xeon E5 (Xeon(R)) CPU: 8-core
32 GB RAM Upgradeable - [Instructions]
DIMM1
8 GB DDR3 ECC 1866 MHz ok
DIMM2
8 GB DDR3 ECC 1866 MHz ok
DIMM3
8 GB DDR3 ECC 1866 MHz ok
DIMM4
8 GB DDR3 ECC 1866 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en2: 802.11 a/b/g/n/ac
Video Information: ⓘ
AMD FirePro D500 - VRAM: 3072 MB
AMD FirePro D500 - VRAM: 3072 MB
LG ULTRAWIDE 2560 x 1080 @ 60 Hz
System Software: ⓘ
macOS Sierra 10.12.5 (16F73) - Time since boot: about one hour
Disk Information: ⓘ
APPLE SSD SM0512G disk0 : (500.28 GB) (Solid State - TRIM: Yes)
[Show SMART report]
EFI (disk0s1 - MS-DOS FAT32) <not mounted> : 210 MB
Macintosh HD (disk0s2 - Journaled HFS+) / [Startup]: 499.42 GB (349.36 GB free)
Recovery HD (disk0s3 - Journaled HFS+) <not mounted> [Recovery]: 650 MB
USB Information: ⓘ
USB20Bus
hub_device
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
USB30Bus
Apple, Inc. Keyboard Hub
Logitech Optical USB Mouse
Apple Inc. Apple Keyboard
MediaTek Inc MT1956
USB30Bus
Asmedia ASM107x
USB Storage USB3.0 SATA Bridge
Asmedia ASM107x
C-Media Electronics Inc. USB Advanced Audio Device
Thunderbolt Information: ⓘ
Apple Inc. thunderbolt_bus_2
Apple Inc. thunderbolt_bus_1
Promise Technology, Inc. Pegasus2-R
Apple Inc. thunderbolt_bus_0
Sonnet Technologies, Inc. Echo 15 TB2
Gatekeeper: ⓘ
Mac App Store and identified developers
Kernel Extensions: ⓘ
/Applications/DAEMON Tools.app
[loaded] com.disc-soft.DAEMONTools.VirtualSCSIBus (1.0.2 - SDK 10.12) [Lookup]
/Applications/Toast 15 Titanium/Toast Audio Assistant.app
[loaded] com.Cycling74.driver.Soundflower (1.6.7 - SDK 10.7) [Lookup]
/Library/Extensions
[not loaded] com.Sonnet.Echo15ThunderboltDockChargingSupport (1.0.8 - SDK 10.11) [Lookup]
[loaded] com.promise.driver.stex (5.2.10 - SDK 10.9) [Lookup]
[not loaded] com.sonnet.Echo15ThunderboltDockHubChargingSupport (1.0.8 - SDK 10.11) [Lookup]
~/Library/Services/ToastIt.service/Contents/MacOS
[not loaded] com.roxio.TDIXController (2.0) [Lookup]
System Launch Agents: ⓘ
[not loaded] 6 Apple tasks
[loaded] 169 Apple tasks
[running] 107 Apple tasks
System Launch Daemons: ⓘ
[not loaded] 40 Apple tasks
[loaded] 177 Apple tasks
[running] 99 Apple tasks
Launch Agents: ⓘ
[not loaded] com.adobe.AAM.Updater-1.0.plist (Adobe Systems, Inc. - installed 2017-06-05) [Lookup]
[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a23d420d.plist (Adobe Systems, Inc. - installed 2017-02-17) [Lookup]
[running] com.adobe.AdobeCreativeCloud.plist (Adobe Systems, Inc. - installed 2017-04-03) [Lookup]
[not loaded] com.teamviewer.teamviewer.plist (TeamViewer GmbH - installed 2017-04-19) [Lookup]
[not loaded] com.teamviewer.teamviewer_desktop.plist (TeamViewer GmbH - installed 2017-04-19) [Lookup]
Launch Daemons: ⓘ
[loaded] com.adobe.ARMDC.Communicator.plist (Adobe Systems, Inc. - installed 2017-02-17) [Lookup]
[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (Adobe Systems, Inc. - installed 2017-02-17) [Lookup]
[running] com.adobe.adobeupdatedaemon.plist (Adobe Systems, Inc. - installed 2017-04-03) [Lookup]
[running] com.adobe.agsservice.plist (Adobe Systems, Inc. - installed 2017-05-22) [Lookup]
[running] com.disc-soft.DAEMONTools.PrivilegedHelper.plist (Disc Soft Ltd - installed 2017-05-31) [Lookup]
[loaded] com.macpaw.CleanMyMac3.Agent.plist (MacPaw Inc. - installed 2017-06-01) [Lookup]
[loaded] com.microsoft.autoupdate.helper.plist (Microsoft Corporation - installed 2017-04-13) [Lookup]
[loaded] com.microsoft.office.licensingV2.helper.plist (Microsoft Corporation - installed 2017-02-16) [Lookup]
[loaded] com.teamviewer.Helper.plist (TeamViewer GmbH - installed 2017-03-14) [Lookup]
[not loaded] com.teamviewer.teamviewer_service.plist (TeamViewer GmbH - installed 2017-04-19) [Lookup]
User Launch Agents: ⓘ
[loaded] com.adobe.AAM.Updater-1.0.plist (Adobe Systems, Inc. - installed 2017-02-21) [Lookup]
[running] com.disc-soft.DAEMONTools.DAEMONToolsAgent.plist (Disc Soft Ltd - installed 2017-05-31) [Lookup]
[loaded] com.dropbox.DropboxMacUpdate.agent.plist (Dropbox, Inc. - installed 2017-05-31) [Lookup]
[loaded] com.google.keystone.agent.plist (Google, Inc. - installed 2017-03-28) [Lookup]
User Login Items: ⓘ
Dropbox Application
(/Applications/Dropbox.app)
SonnetDockMenulet Application
(/Applications/SonnetDockMenulet.app)
Wondershare Helper Compact Application
(~/Library/Application Support/Helper/Wondershare Helper Compact.app)
Internet Plug-ins: ⓘ
AdobePDFViewerNPAPI: 15.023.20053 (installed 2016-12-23) [Lookup]
AdobePDFViewer: 15.023.20053 (installed 2016-12-23) [Lookup]
QuickTime Plugin: 7.7.3 (installed 2017-05-31)
AdobeAAMDetect: 3.0.0.0 (installed 2017-04-03) [Lookup]
3rd Party Preference Panes: ⓘ
None
Time Machine: ⓘ
Time Machine not configured!
Top Processes by CPU: ⓘ
3% WindowServer -daemon
1% kernel_task
1% fontd
0% 4.0.0.185 --num-raster-threads=4 --enable-zero-copy --disable-partial-raster [and 4 more arguments]
0% Adobe Desktop Service --onOSstartup=true [and 2 more arguments]
Top Processes by Memory: ⓘ
1.64 GB kernel_task
426 MB Microsoft Outlook
262 MB Google Chrome Helper --type=renderer [and 14 more arguments]
229 MB Dropbox
164 MB Google Chrome
Top Processes by Network Use: ⓘ
Input Output Process name
488 KB 245 KB Dropbox
602 KB 63 KB mDNSResponder
14 KB 16 KB ARDAgent
11 KB 14 KB apsd
18 KB 4 KB netbiosd
Top Processes by Energy Use: ⓘ
5.52 WindowServer -daemon
0.80 4.0.0.185 --num-raster-threads=4 --enable-zero-copy --disable-partial-raster [and 4 more arguments]
0.50 launchd
0.36 Core Sync
Virtual Memory Information: ⓘ
26.25 GB Available RAM
13.72 GB Free RAM
5.75 GB Used RAM
12.53 GB Cached files
0 B Swap Used
Diagnostics Information: ⓘ
2017-06-07 09:21:41 ~/Library/Logs/DiagnosticReports/Adobe Desktop Service_2017-06-07-092141_[redacted].crash
com.adobe.acc.AdobeDesktopService - /Library/Application Support/Adobe/*/Adobe Desktop Service.app/Contents/MacOS/Adobe Desktop Service
2017-06-05 09:32:40 ~/Library/Logs/DiagnosticReports/Adobe Media Encoder CC 2017_2017-06-05-093240_[redacted].crash
com.adobe.ame.application.CC10 - /Applications/Adobe Media Encoder CC 2017/Adobe Media Encoder CC 2017.app/Contents/MacOS/Adobe Media Encoder CC 2017
Application Specific Information:
dyld: launch, loading dependent libraries
2017-06-05 09:32:14 /Library/Logs/DiagnosticReports/GIF Brewery 3_2017-06-05-093214_[redacted].cpu_resource.diag [Details]
/Applications/GIF Brewery 3.app/Contents/MacOS/GIF Brewery 3
2017-06-05 08:52:43 ~/Library/Logs/DiagnosticReports/Adobe Premiere Pro CC 2017_2017-06-05-085243_[redacted].crash
com.adobe.PremierePro.CC11 - /Applications/Adobe Premiere Pro CC 2017/Adobe Premiere Pro CC 2017.app/Contents/MacOS/Adobe Premiere Pro CC 2017
Application Specific Information:
dyld: launch, loading dependent libraries
2017-06-05 08:43:50 ~/Library/Logs/DiagnosticReports/Creative Cloud_2017-06-05-084350_[redacted].crash
com.adobe.acc.AdobeCreativeCloud - /Applications/Utilities/Adobe Creative Cloud/*/Creative Cloud.app/Contents/MacOS/Creative Cloud
Application Specific Information:
abort() called
*** error for object 0x7fb780033a08: incorrect checksum for freed object - object was probably modified after being freed.
2017-06-05 08:43:21 ~/Library/Logs/DiagnosticReports/Adobe Premiere Pro CC 2017_2017-06-05-084321_[redacted].crash
Application Specific Information:
dyld: launch, loading dependent libraries
2017-06-05 08:43:16 ~/Library/Logs/DiagnosticReports/Adobe Premiere Pro CC 2017_2017-06-05-084316_[redacted].crash
Application Specific Information:
dyld: launch, loading dependent libraries
2017-06-05 08:43:10 ~/Library/Logs/DiagnosticReports/Adobe Premiere Pro CC 2017_2017-06-05-084310_[redacted].crash
Application Specific Information:
dyld: launch, loading dependent libraries
2017-06-05 08:30:51 /Library/Logs/DiagnosticReports/Adobe Photoshop CC 2017_2017-06-05-083051_[redacted].cpu_resource.diag [Details]
/Applications/Adobe Photoshop CC 2017/Adobe Photoshop CC 2017.app/Contents/MacOS/Adobe Photoshop CC 2017
Note, I ran this before removing Toast the second time. DAEMONTools is a disc imaging program that I installed during the troubleshooting of this issue, hoping that since it can mount/unmount ISO's it might help me solve this problem. It did not.
The only other thing I can think of, is the Blu-ray drive itself has that image in it's cache, but it seems to me that the cache should be wiped when the drive is unplugged.
You may want to contact Sonnet, I've always gotten excellent support from them, maybe they could help try and figure this issue out.
I emailed Sonnet this morning. No response just yet.