Those who demand use of of flash drives are not technically competent.
The optical disc remains the most reliable solution to long term data storage. (mine are over 30 years old with zero failures)
I have had drive failures of ALL kinds, "all" means ALL.
The CD, DVD, and Blu Ray have saved me time, money, and heartbreak.
ALL versions of OSX that I use have Bootable DVD installers including High Sierra.
(OSX 10.4 to 10.13)
Mavericks is a unique story because it had a unique flaw.
The story is….
There is a Terminal method for creating an installer DVD for Mavericks and it works, but only works 99%.
The 1% ***failure is, the DVD installer would not create a Recovery Partition and no solution was ever found.
This much simpler method IS the solution to that 1% failure.
***(failure does not occur on usb or drive partition installers, only DVD and only with Mavericks)
1. Install OS X Mavericks.app must be located in your Applications folder.
2. Create an 8 GB GUID partition with Disk Utility on any hard drive and name it Untitled. (Name is Very Important, creating a partition is very simple just click the + (plus) at lower left in the Partition window)
3. Launch Terminal from the Utilities Folder.
4. Paste the following into Terminal followed by the Return key.
(you will need to type in an admin password, simply follow the instructions)
sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ Mavericks.app
This will create an Installer Drive and name it “Install OS X Mavericks” when finished.
5. Quit Terminal and Open Disk Utility.
6. Click on the Install OS X Mavericks drive that appeared in the drive list on left in Disk Utility.
7. Click on File from Menu and choose New Disk Image from Install OS X Mavericks”.
8. Options are:
Image Format: DVD/CD master
Encryption: none
You are creating a disc image from the installer HD partition and…. making the type of disc image bootable.
You may place this disc image where you please. (suggest Documents Folder)
9. Once the disc image has been created (Install OS X Mavericks.cdr) click on the disc image from inside of (still running) Disk Utility. (select it from the list on left)
10. Click Burn and follow the instructions. (you will need a blank DVD R DL disc)
Poof!
You just created a bootable Mavericks installer DVD.
NOTES:
Do Not burn the .cdr image from Finder.
You can now remove the partition you created just as easily as it was created by clicking the - (minus) in the partition window.