Not long ago, a digital photo was a rarity, and even if you had a camera that could take them, you couldn't fit many on your hard drive. It's a similar story with music.
These days, it's almost impossible to believe that the original MP3 player, Audio Highway's Listen Up from 1997, had a capacity of 32MB, which could hold about an album's worth of audio with a low enough compression ratio. Most of our TuxRadar podcasts are larger than that, and a typical broadband connection can grab the data in seconds.
But if you want to use your optical discs for anything other than this simple form of storage, such as playing music in a CD player or watching your home movies on a DVD player, you'll need to take extra steps before the files on your hard drive will work where you want them to.
Record audio CDs
Fortunately, you don't need to worry about all the technical complexities of converting files, because both Gnome and KDE's principal burning tools can handle this for you.
When you first launch K3b, for instance, you can select New Audio CD from the quick launch bar at the bottom of the screen. This changes the display in the lower panel to a list that will hold all your tracks. All you need to do then is drag an audio file from the top panel into a slot on the lower, and arrange them as you wish.
K3b can handle most common formats, including MP3 (with Lame installed), Ogg Vorbis and Flac.
Gnome's Brasero follows a similar process. The launch screen asks what kind of disc you'd like, so select Audio Project and use the Add button in the toolbar to add audio files, which will then be converted for burning on to a music CD.
An audio CD's capacity is measured against the maximum duration of all the tracks you add, rather than the size of the audio files themselves. Here, K3b has an advantage over Brasero, because it shows the current length of your audio CD in a timeline at the bottom of the window. This means you can easily see how much more time you've got, and if any of your tracks push the total length too far.
Brasero, on the other hand, simply displays the total length of your tracks, with no warning as to whether this might be too long for your media. But because a typical CD can fit between 74 and 80 minutes, it's not that difficult to work out for yourself.
Video discs
Burning video content on to a disc that will play on a DVD player is slightly trickier. This is because video often has an interactive menu and chapter divisions. Add to these the specific audio and video format requirements of the DVD standard, and it quickly becomes complicated.
But before delving into DVD creation, consider a different format. Many DVD players and even games consoles will play a variety of video file types on a range of media, which may mean that all you have to do is convert your video into the correct format, burn it to a disc, and use your player's menus to play it. This might save a lot of wasted effort, and might even result in a video that's of better quality that a DVD, especially if you output your files with a high-definition MKV profile from Handbrake, for instance.
Step by step: Create a DVD with Bombono
1. Video format
When you export your video from a tool such as OpenShot, select either MPEG2 or DVD format for the output.
2. Import files
Launch Bombono and import your video media. If there are any problems with the import format, you'll need to re-encode files.
3. Create menus
From the Menu page, click the Plus sign to add a menu. Drag movie files to link their launch to an element, then burn from the Output tab.