I would stay away from freeware alternatives for recording Skype on the PC-I’ve had nothing but problems. This program is priced similarly to Call Recorder and has a free trial.
There is a PC alternative to ecamm Call Recorder called Pamela. It has an auto-record mode, which I love (it’s easy to forget to press the record button when interviewing someone!). The program integrates directly into Skype and allows for video or audio calls to be recorded. I use Call Recorder for Skype by ecamm on the Mac and have found it to be simple to use and reliable. Skype doesn’t have a built-in call recording option, but several add-on programs are available that enable this feature. Skype works well for audio, video, and conference calling. It’s also possible to call landlines and cell phones using Skype, though the audio quality will be lower than in a Skype-to-Skype recording. Audio quality can be quite good over Skype, often rivaling person-to-person recordings. Most podcasters record at least the occasional interview, and Skype is the most common tool for this.