Poor audio quality - iTunes uses 100% CPU for 15-20 seconds

About 6-7 seconds into an MP3, iTunes pegs my CPU to 100%, and the audio lags or shuts off completely. Protected AAC files play without issue. Converting the MP3 to AAC does not help: the audio and CPU give the same results. Winamp, WMP, and *even QuickTime* can play the same MP3 files without issue. It is only MP3s and only iTunes. I have uninstalled my antivirus, but that did not help. I removed all start up applications and closed any program that wasn't essential to the computer's operation. I have even killed non-essential processes. These files have played in in iTunes previously, it has only been in the last few months that I have had a problem. I have uninstalled and reinstalled the latest version of iTunes just this morning. Nothing has helped, and I'm not about to reformat my PC just to see if that will help when these files play just fine in all my other media players.
So, to recap:
- Problem is ONLY with MP3s -> M4Ps play fine
- Problem is ONLY iTunes -> Quicktime, Windows Media Player, and WinAmp play the MP3 just fine
Ideas?

I have no idea what is causing this, but iTunes is rather sensitive to ID3 tag versions - the usual symptom is that it will not play the file.
As an experiment try selecting an MP3 track, then right click and select convert ID3 tags. Convert to "None".
I would do this on a copy of the file.

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       Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 12:46:06 process WindowServer[121] caught causing excessive wakeups. EXC_RESOURCE supressed due to audio playback
       Nov 10 12:49:29 jnl: b(1, 2): replay_journal: from: 27704832 to: 35355648 (joffset 0x1721c000)
       Nov 10 12:49:29 jnl: b(1, 2): journal replay done.
       Nov 10 12:54:05 jnl: b(1, 2): replay_journal: from: 35355648 to: 40313344 (joffset 0x1721c000)
       Nov 10 12:54:05 jnl: b(1, 2): journal replay done.
       Nov 10 12:54:08 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
       Nov 10 14:31:43 PM notification timeout (pid 232, Creative Cloud)
       Nov 10 14:31:43 PM notification timeout (pid 327, Adobe CEF Helper)
       Nov 10 14:31:43 PM notification timeout (pid 324, Adobe CEF Helper)
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 : smb_rq_reply failesmbd 2_smb_60
       Nov 10 15:07:47 parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 tify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_nsotify:mb2 sm_b_rq_reply sfailmed b60
       Nov 10 15:07:47 _parse_change_notify: smbsmb2_rq__rsepmb_parsly failee_d ch60ange_notify
       Nov 10 15:07:47 : smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:47:46 process discoveryd[49] thread 1013 caught burning CPU! It used more than 50% CPU (Actual recent usage: 99%) over 180 seconds. thread lifetime cpu usage 153.503446 seconds, (128.774521 user, 24.728925 system) ledger info: balance: 90007455004 credit: 153327303891 debit: 63319848887 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 90099512937
       Nov 11 08:25:38 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
       Nov 11 09:38:05 process Adobe InDesign C[553] caught causing excessive wakeups. Observed wakeups rate (per sec): 283; Maximum permitted wakeups rate (per sec): 150; Observation period: 300 seconds; Task lifetime number of wakeups: 45017
       Nov 10 14:31:43 PM notification timeout (pid 327, Adobe CEF Helper)
       Nov 10 14:31:43 PM notification timeout (pid 324, Adobe CEF Helper)
       Nov 10 14:31:43 com.apple.dpd: Service exited with abnormal code: 75
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 : smb_rq_reply failesmbd 2_smb_60
       Nov 10 15:07:47 parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 tify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_nsotify:mb2 sm_b_rq_reply sfailmed b60
       Nov 10 15:07:47 _parse_change_notify: smbsmb2_rq__rsepmb_parsly failee_d ch60ange_notify
       Nov 10 15:07:47 : smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
       Nov 10 15:47:46 process discoveryd[49] thread 1013 caught burning CPU! It used more than 50% CPU (Actual recent usage: 99%) over 180 seconds. thread lifetime cpu usage 153.503446 seconds, (128.774521 user, 24.728925 system) ledger info: balance: 90007455004 credit: 153327303891 debit: 63319848887 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 90099512937
       Nov 10 16:47:01 com.apple.WebKit.Networking.UUID: Service exited with abnormal code: 1
       Nov 11 08:25:37 com.apple.Kerberos.kdc: Service exited with abnormal code: 1
       Nov 11 08:25:38 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
       Nov 11 08:56:36 com.apple.dpd: Service exited with abnormal code: 75
       Nov 11 09:38:05 process Adobe InDesign C[553] caught causing excessive wakeups. Observed wakeups rate (per sec): 283; Maximum permitted wakeups rate (per sec): 150; Observation period: 300 seconds; Task lifetime number of wakeups: 45017
    CPU per process: com.apple.WebKit (UID 501) is using 41.2  %
    Daemons
       com.apple.installer.osmessagetracing
       com.microsoft.office.licensing.helper
       com.adobe.fpsaud
    Agents
       com.adobe.CS4ServiceManager
       com.adobe.AdobeCreativeCloud
       com.adobe.ARM.UUID
       com.adobe.ARM.UUID
       com.apple.Safari
       com.adobe.ARM.UUID
       com.google.keystone.user.agent
       com.apple.AirPortBaseStationAgent
    App extensions
       com.apple.InternalFiltersXPC
    Contents of /Library/LaunchAgents/com.adobe.AdobeCreativeCloud.plist (checksum 461455494)
       <?xml version="1.0" encoding="UTF-8"?>
       <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
       <plist version="1.0">
       <dict>
        <key>Label</key>
        <string>com.adobe.AdobeCreativeCloud</string>
        <key>Program</key>
        <string>/Applications/Utilities/Adobe Creative Cloud/ACC/Creative Cloud.app/Contents/MacOS/Creative Cloud</string>
        <key>ProgramArguments</key>
        <array>
        <string>/Applications/Utilities/Adobe Creative Cloud/ACC/Creative Cloud.app/Contents/MacOS/Creative Cloud</string>
        <string>--showwindow=false</string>
              <string>--onOSstartup=true</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
       </dict>
       </plist>
    Contents of Library/LaunchAgents/com.adobe.AAM.Updater-1.0.plist (checksum 4071182229)
       <?xml version="1.0" encoding="UTF-8"?>
       <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
       <plist version="1.0">
        <dict>
         <key>Label</key>
         <string>com.adobe.AAM.Scheduler-1.0</string>
         <key>Program</key>
         <string>/Library/Application Support/Adobe/OOBE/PDApp/UWA/UpdaterStartupUtility</string>
         <key>ProgramArguments</key>
         <array>
            <string>/Library/Application Support/Adobe/OOBE/PDApp/UWA/UpdaterStartupUtility</string>
            <string>-mode=scheduled</string>
         </array>
         <key>StartCalendarInterval</key>
         <dict>
           <key>Minute</key>
           <integer>0</integer>
           <key>Hour</key>
           <integer>2</integer>
         </dict>
        </dict>
       </plist>
    Contents of Library/LaunchAgents/com.adobe.ARM.UUID.plist (checksum 394026997)
       <?xml version="1.0" encoding="UTF-8"?>
       <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
       <plist version="1.0">
       <dict>
        <key>Label</key>
        <string>com.adobe.ARM.UUID</string>
        <key>ProgramArguments</key>
        <array>
        <string>/Applications/Adobe Reader.app/Contents/MacOS/Updater/Adobe Reader Updater Helper.app/Contents/MacOS/Adobe Reader Updater Helper</string>
        <string>semi-auto</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
        <key>StartInterval</key>
        <integer>12600</integer>
       </dict>
       </plist>
    Contents of Library/LaunchAgents/com.adobe.ARM.UUID.plist (checksum 4116814193)
       <?xml version="1.0" encoding="UTF-8"?>
       <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
       <plist version="1.0">
       <dict>
        <key>Label</key>
        <string>com.adobe.ARM.UUID</string>
        <key>ProgramArguments</key>
        <array>
        <string>/Applications/Adobe Acrobat XI Pro/Adobe Acrobat Pro.app/Contents/MacOS/Updater/Adobe Acrobat Updater Helper.app/Contents/MacOS/Adobe Acrobat Updater Helper</string>
        <string>semi-auto</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
        <key>StartInterval</key>
        <integer>12600</integer>
       </dict>
       </plist>
    Contents of Library/LaunchAgents/com.adobe.ARM.UUID.plist (checksum 926752576)
       <?xml version="1.0" encoding="UTF-8"?>
       <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
       <plist version="1.0">
       <dict>
        <key>Label</key>
        <string>com.adobe.ARM.UUID</string>
        <key>ProgramArguments</key>
        <array>
        <string>/Applications/Adobe Acrobat X Pro/Adobe Acrobat Pro.app/Contents/MacOS/Updater/Adobe Acrobat Updater Helper.app/Contents/MacOS/Adobe Acrobat Updater Helper</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
        <key>StartInterval</key>
        <integer>12600</integer>
       </dict>
       </plist>
    Contents of Library/LaunchAgents/com.apple.SafariBookmarksSyncer.plist (checksum 4209634474)
       <?xml version="1.0" encoding="UTF-8"?>
       <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
       <plist version="1.0">
       <dict>
        <key>Label</key>
        <string>com.apple.Safari</string>
        <key>LimitLoadToSessionType</key>
        <string>Aqua</string>
        <key>ProgramArguments</key>
        <array>
        <string>/Applications/Safari.app/Contents/SafariSyncClient.app/Contents/MacOS/S afariSyncClient</string>
        <string>--sync</string>
        <string>com.apple.Safari</string>
        <string>--entitynames</string>
        <string>com.apple.bookmarks.Bookmark,com.apple.bookmarks.Folder</string>
        </array>
        <key>RunAtLoad</key>
        <false/>
        <key>ThrottleInterval</key>
        <integer>60</integer>
        <key>WatchPaths</key>
        <array>
        <string>/Users/USER/Library/Safari/Bookmarks.plist</string>
        </array>
       </dict>
       ...and 1 more line(s)
    Contents of Library/LaunchAgents/com.google.keystone.agent.plist (checksum 64800286)
       <?xml version="1.0" encoding="UTF-8"?>
       <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
       <plist version="1.0">
       <dict>
        <key>Label</key>
        <string>com.google.keystone.user.agent</string>
        <key>LimitLoadToSessionType</key>
        <string>Aqua</string>
        <key>ProgramArguments</key>
        <array>
         <string>/Users/USER/Library/Google/GoogleSoftwareUpdate/GoogleSoftwareUpdate.bu ndle/Contents/Resources/GoogleSoftwareUpdateAgent.app/Contents/MacOS/GoogleSoftw areUpdateAgent</string>
         <string>-runMode</string>
         <string>ifneeded</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
        <key>StartInterval</key>
        <integer>3523</integer>
        <key>StandardErrorPath</key>
        <string>/dev/null</string>
        <key>StandardOutPath</key>
        <string>/dev/null</string>
       </dict>
       </plist>
    Bad plists
       Library/Preferences/com.apple.iphotomosaic.plist
    Listeners
       launchd: afpovertcp
       launchd: afpovertcp
       launchd: microsoft-ds
       launchd: ssh
       launchd: microsoft-ds
       launchd: ssh
       kdc: kerberos
    User login items
       Microsoft Outlook
       - /Applications/Microsoft Office 2011/Microsoft Outlook.app
       TransmitMenu
       - /Applications/Transmit.app/Contents/MacOS/TransmitMenu.app
       ClipMenu
       - /Applications/ClipMenu.app
       Dept
       - /Volumes/Dept
       Public
       - /Volumes/Public
       Apps
       - /Volumes/Apps
    Restricted files: 4584
    Lockfiles: 99
    Elapsed time (s): 352

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