Some AirLive products uses GPL source code. There is no warranty for the GPL software. You may find the license text of the GNU General Public License (GPL) within the package. If a source code not listed below, please first write to OvisLink Corp to confirm whether the product uses GPL license code. If confirmed, then please send $5USD dollars of handling&shipping charge to OvisLink Corp. at 9F, No. 98, Min-Chuan Rd. Hsin Tien City, Taipei Taiwan, R.O.C. A CD containing GPL source code will be provided. Please note that this apply to products that uses GPL license code only. And the source code is provided according to GPL license policy. A copy of full GPL license can be downloaded from this link. OvisLink Corp. provided GPL licensed code according to the GPL licensing policy. There is no warranty or support for the GPL codes. Please do not write OvisLink Corp. for technical support on development of the firmware. In addition, damaged from non-OvisLink Corp. firmware will void your product warranty. Thanks for your attention.