The 0.0.20 version of nicovidedownloader for Mac was available as a free download on our website. Nicovideo-dl-0.0.20110724.gz is the most common filename for this app's installer. The following version: 0.0 was the most frequently downloaded one by the program users. This app's bundle is identified as jp.nicovide.nicovideDownloader. Nicovidedownloader for Mac is categorized as Internet & Network Tools. This free Mac application was originally produced by nicovide.
From the developer:
Nicovide downloader is a small command-line program to download videos from www.nicovideo.jp. It is implemented by Python. It is platform-independent and should work on Unix/Windows/Mac.
Not compatible with old Japanese version "(9)", please switch to "(Harajuku)" version, which can be found in your account settings.
You may want to check out more software for Mac, such as Unofficial RapidShare Tool, HyenaeFE or kFTP, which might be similar to nicovidedownloader.