Support for Xilisoft iPhone Ringtone Maker for Mac is available from the publisher site.
Short description: Xilisoft iPhone Ringtone Maker for Mac lets you convert favorite music/ songs in WMA, WAV, RA, M4A, MP3 formats to M4R iPhone ringtones. It can also extract from AVI, WMV, DivX, MP4, H.264/AVC, MKV, XviD, 3GP, MPEG, etc to M4R iPhone ringtone....
To speed up your downloads we recommend you use a download manager such as 
EZlib is a Free MP3 Music Library/Playlist Manager featuring custom-query on 14 ID3v2 tag fields and file dates; single and mass ID3v2 Tag updating; 4 user-defined custom ID3v2 fields; add/delete pictures; runtime playlist tweaking; automatic lyrics
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Automuter is an application that stays in system tray notification area (near windows clock). It can mute speakers when computer is locked, when screensaver is running. Alternatively, you can set up you own silent time schedule or mute by hotkey.