Which program should I use to teach my children to read?

There is a DVD you can get from walmart or online called Leapfrog Letter Factory. It not only teaches letters but also the SOUND the letters make. My kids love it and my son is starting to read and he's 4 1/2 just cause he knows the sound each letter makes. It teaches them in a fun way. If you start trying to force your kid to read too early because you are trying to compete with other moms or whatever reason...they will hate it. This dvd is fun for kids to watch and is age appropriate for both kids.