Pinnacle Studio 12 is good, Adobe Premiere Elements is good, Sony Vegas Movie Studio is good, Ulead Studio 11 is good. All are capable of producing in-sync video/audio.. How are you capturing the video? Are you using the firewire cable? Do you have two separate HD's, one for Software/OS, and one for data (as recommended by all of the major video editing softwares)? Are you shutting down you A/V software, and any other unnecessary stuff, while capturing? If you are capturing via firewire, have you tried a different firewire port? Are you using the correct capture settings, using the correct frame rate, and audio settings? If you are capturing as NTSC at 29.97 fps and audio of 48hz as AC3?