The problem that import asf to imovie is a frequently asked questions for our mac imovie users. When you have an mpeg-4 digital video can that record .asf files, you will play it with Window Media Player, if you want to import asf to imovie for editing, you will have a headache for imovie import asf.
Advanced Systems Format (formerly Advanced Streaming Format, Active Streaming Format) is Microsoft's proprietary digital audio/digital video container format, especially meant for streaming media. ASF is part of the Windows Media framework. So it as Windows Media Player compatible, but you can't import asf to imovie for mac.
But now importing asf to imovie is not a headache problem for mac users, with ASF to iMovie Converter you can convert asf to imovie support format videos easily, use imovie import asf converter you just need sevral steps to convert asf to imovie and then import asf to imovie directly by yourself.
Mac Video Converter is one of the best ASF to iMovie Converter, it is a powerful imovie import asf converter, with this asf to imovie, you can not only import/convert asf to imovie, but also can import/convert avi, mpg, mod, tod, flv, mts, m2ts, tp, trp, m4v, wmv, vob, dat, dv, f4v, asf, etc to iMovie HD, iMovie'08 or iMovie'09 support video formats like DV, MPEG2, MPEG4, MOV.