Step 1: Free download FLV to VCD Converter and install it.
The interface is like the following:

Condition1: you already have flv video files on your computer.
1. Click file button, choose the flv video you want to convert
2. In output format, Choose MPEG1,2 (DVD, VCD, SVCD).
3. Click start convert FLV to VCD (FLV to RM).
Condition2: Want to directly convert FLV to RM(FLV to VCD) online.
Here we take youtube for example, if you want to convert FLV from youtube to VCD, it is very simply.
1. Click URL Button, copy the url to this FLV to VCD/SVCD to Converter, for example: copy the url
http://www.youtube.com/watch?v=Xz3CkM0QdK4&feature=dir
2. In output format, Choose Choose quicktime (VCD).
3. Click Converte to start convert FLV to VCD . For More Information See this Guide: How to download youtube videos
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Related Software:
FLV to AVI Software:
This software can also Convert FLV to RM/RMVB/RA, FLV to VCD/SVCD, just feel free to download it. as it is easy to operate, so here i shall not list the guide of how to convert FLV to VCD with this software.