We do not publicize the system operating environment.
Please refer to the following in case there is any inconvenience using gacco.

＜PC users＞

• We highly recommend you to use the latest OS. (Using Windows XP is not recommended.）
• Please use the latest Chrome or Firefox browser.

      * Thus, gacco system is not compatible to browsers older than IE 9.　
             > For more details.

＜iOS users＞

• We highly recommend you to use latest iOS.
• Please use the latest Chrome or Firefox browser.

＜Android users＞

• We highly recommend you to use latest iOS.
• Please use the latest Chrome or Firefox browser.
• As Android terminals differ by model, please try other terminals or PCs in case the problem can not be solved.

＜Network Environment＞

• Using the higher speed network environment is better.
• We recommend you to use optical lines, broadband or high speed Wi-Fi, 4G, LTE, etc.
• When used in a low speed internet environment, there may be delay in displaying the page and/or low quality in viewing the movie.