Boot-camp assistant won't recognize my DVD-RW

Question

So I have put a DVD-RW on so it could burn the Windows 7 to my DVD. I've seen a lot of answers to this question but it doesn't quite work.
I've a iMac 21' and tried to do this quite many times. What I do is I put the DVD in, start installing and then it automatically burn the DVD for me, but after I chose the partition for the Windows it won't install it further and gives me a error about my DVD is not inside and it takes a few seconds for it to recognize the DVD, but I've been waiting for a long time. Any solutions?

Answer 1

The "lot of answers" all usually have one thing in common:
Burn Windows 7 or 8 ISOs are the slow 2x speed possible w/ verify.
Anything else with using Disk Utility to do the burn or even BCA do fail.
Copy the ISO to your disk and try using that to write the ISO to (another) USB device.
Instructions for the Air: https://support.apple.com/kb/HT4407
download a free iso burning program for Mac (we used SimplyBurns Mac).
That program runs you through the necessary steps to properly burn the iso file you need.
After doing so, Bootcamp recognized the installation file and everything worked as it should.
https://discussions.apple.com/thread/3410900?start=45&tstart=0
http://simplyburns.en.softonic.com/mac
If for some reason you downloaded Windows from Microsoft instead of buying a package with a disc, you need to download the ISO version and burn it to a DVD. See this article on downloading the ISO:
http://www.mydigitallife.info/windows-7-iso-x86-and-x64-official-direct-download -links-ultimate-professional-and-home-premium/ (Make sure you choose the ISO that matches the version you bought).
Here's instructions on burning an ISO with Disk Utility:
http://lifehacker.com/251758/mac-tip--how-to-burn-an-iso-or-dmg-file-to-disc
And this thread on burning a Windows DVD in OSX:
https://discussions.apple.com/thread/2039118?start=0&tstart=0 (Summary: you can use Disk Utility to burn the ISO, but choose a slow burn speed)
Boot Camp Support:
Installation Guide Instructions for all features and settings.
Boot Camp 4.0 FAQ Get answers to commonly asked Boot Camp questions.
Windows 7 FAQ Answers to commonly asked Windows 7 questions.
Support Communities Discuss Boot Camp topics with other users.
https://www.apple.com/support/bootcamp/
Step 4: Install the Boot Camp Drivers for Windows
After installing Windows, install Mac-specific drivers and other software for Windows using your Mac OS X installation disc. 
The Mac OS X disc installs drivers to support Mac components, including AirPort,built-in iSight camera, the Apple Remote, the trackpad on a portable Mac, and thefunction keys on an Apple keyboard.
The Mac OS X disc also installs the Boot Camp control panel for Windows and theApple Boot Camp system tray item.
To install the Boot Camp drivers:
1 Eject the Windows installation disc.
2 Insert the Mac OS X disc.If the installer doesn’t start automatically, browse the disc using Windows Explorerand double-click the setup.exe file in the Boot Camp directory.
3 Follow the onscreen instructions.
If a message appears that says the software you’re installing has not passed WindowsLogo testing, click Continue Anyway.
Windows that appear only briefly during the installation don’t require your input.
If nothing appears to be happening, there may be a hidden window that you mustrespond to. Check the taskbar and look behind open windows.
Important: Do not click the Cancel button in any of the installer dialogs.
4 After your computer restarts, follow the instructions in the Found New HardwareWizard to update your software drivers (Windows XP only).
5 Follow the instructions for any other wizards that appear.
6 Check for updated Boot Camp drivers by using Apple Software Update or going to www.apple.com/support/bootcamp.
If You Have Problems Installing the Device Drivers
If it appears that the Boot Camp drivers weren’t successfully installed, try repairing them.
To repair Boot Camp drivers:
1 Start up your computer in Windows.
2 Insert your Mac OS X installation disc.
3 If the installer doesn’t start automatically, browse the disc using Windows Explorerand double-click the setup.exe file in the Boot Camp directory.
4 Click Repair and follow the onscreen instructions.
If a message appears that says the software you’re installing has not passed WindowsLogo testing, click Continue Anyway.
If you need to reinstall specific drivers, you can install one driver at a time. For example,if your built-in iSight camera isn’t working, you can reinstall just the iSight driver.
Individual drivers are in the Drivers folder on the Mac OS X installation disc.
To reinstall a specific driver:
1 Insert your Mac OS X installation disc.
2 Quit AutoRun if it opens.
3 Using Windows Explorer, locate the driver that you want to reinstall.
4 Open the driver to start the installation.