After I tried some ways to convert FLV to DVD or SWF to DVD, finally I found my way to convert Flash: FLV/SWF to DVD which seems good to use.
This guide is mainly about how to convert FLV to DVD and SWF to DVD, so that you can back and save your favorite flash for a long time.
It will include two parts as follow:

1. How to free convert FLV to DVD or SWF to DVD?  DVD Flick + SUPER
2. How to convert FLV to DVD or SWF to DVD in an easy way?  FlashOnTV

Part One: How to free convert FLV to DVD or SWF to DVD
As DVD Flick only support FLV video, if your flash is SWF, you may first use SUPER to convert SWF to FLV video. If your flash is FLV video, you can directly go to Step 1.
Download Super (totally free:  http://www.afterdawn.com/software/video_software/video_encoders/super.cfm), convert SWF to FLV or other formats video which DVD Flick support.
 

Step 1 Download DVD Flick (totally free:  http://www.dvdflick.net/download.php), add FLV videos.


Step 2 and Step 3
This software allows you to edit video settings and DVD project settings.

Step 4 Finally insert your DVD to Create DVD.
Note: As it is free software which only support FLV Flash video with simple edit and little slow speed.
If you want to convert SWF to DVD in freeway, find a converter to convert SWF to normal video such as: SUPER, then burn to DVD.

Part Two: How to convert FLV to DVD or SWF to DVD in an easy way
Download FlashOnTV（http://www.flash-on-tv.com/flash-to-dvd.html#124) which is a special software I found to convert FLV to DVD or SWF to DVD.
It is a professional Flash to DVD converter which has more powerful functions, it allows you to create DVD menu and save project or do more edit.

Step 1 Run FlashOnTV, add Flash (SWF or FLV) files.


Step 2 Preprocess Flash files.
Some SWF videos need to preprocess before burn to DVD, it can automatically process.

Step 3 Creat DVD menu.
This FlashOnTV allows you to DVD menu: menu, frame, button, text and custom thumbnail, background image, background music.

 
Step 4 burn DVD.
At last you can burn Flash: FLV/SWF to DVD with DVD disk, DVD Folder and ISO file.
Note: All the files could be saved as FLV project.

After all, if your videos are FLV and you like to use freeware with simple function, you may choose DVD Flick. but if you like a professional flash to DVD software which allows you do many own edit on DVD menu, you can try FlashOnTV.

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