Hi,Zidoo team,here are my issues: My version of the Firmware is 1.2.11 Issues description: Issue 1: If the Zidoo X9Splay videoswhich is relatively large, such as 45GB video file,in LAN(NAS),is not smooth. Fomat details of one video is in the bottom of this POST. Here are some helpful informations: 1) The videos are all on the NAS server using SMB protocol,which support uptoGIGABIT LAN.I have tested copy-speed between the NAS and Zidoo X9S ,upto 20MB/Sor more, using another file manager.(For details, see the appendix:IMG_7937.JPG); 2) I tried to copy the video toan external disk,and play this video by USB3.0 of the Zidoo X9s.it works well,smoothly playbacking; 3) In the same LAN,also using this NAS,other TV boxplayed the same videosmoothly before; 4) if video size is less than 20GB, also in this LAN, Zidoo X9s works well too; According to the mentioned, it maybe the reading and writing speed problem of the Zidoo X9S machine itself disposing large area of video. How should I solve it? Issue 2: when I Copy a large video from the NAS to external disk of Zidoo X9S by USB3.0 ,such as 45GB video file, using Filemanager of firmware v1.2.11,there is no copy progress,and thecopy-speed is only lower than 6MB/Scalculated by myself with copying file size and the time lossed..(For details, see the appendix:IMG_7935.JPG), But I have installed another File manager in Zidoo X9S, which copying-speed isupto 20MB/S or more.(For details, see the appendix:IMG_7937.JPG). According to the mentioned, it maybe the reading and writing speed problem of the Zidoo X9S Filemanager of firmware v1.2.11. How should I solve it? THANKS. =============================================== Here is the fomat details of the video file: DISC INFO: Disc Title: WARCRAFT_UPT2 Disc Size: 46,706,623,250 bytes Protection: AACS BD-Java: Yes Extras: Blu-ray 3D BDInfo: 0.5.8 PLAYLIST REPORT: Name: 00800.MPLS Length: 2:03:07.963 (h:m:s.ms) Size: 45,325,197,312 bytes Total Bitrate: 49.08 Mbps VIDEO: Codec Bitrate Description ----- ------- ----------- MPEG-4 AVC Video 21809 kbps 1080p / 23.976 fps / 16:9 / High Profile 4.1 MPEG-4 MVC Video 12126 kbps AUDIO: Codec Language Bitrate Description ----- -------- ------- ----------- Dolby TrueHD Audio English 4834 kbps 7.1 / 48 kHz / 4834 kbps / 24-bit (AC3 Embedded: 5.1 / 48 kHz / 640 kbps / DN -4dB) SUBTITLES: Codec Language Bitrate Description ----- -------- ------- ----------- Presentation Graphics English 27.153 kbps Presentation Graphics Spanish 22.519 kbps Presentation Graphics Portuguese 20.163 kbps Presentation Graphics Turkish 21.325 kbps Presentation Graphics Russian 21.050 kbps Presentation Graphics Czech 18.801 kbps Presentation Graphics Hungarian 21.346 kbps Presentation Graphics Polish 20.651 kbps Presentation Graphics Thai 18.146 kbps Presentation Graphics Korean 14.752 kbps Presentation Graphics Chinese 16.058 kbps Presentation Graphics Chinese 19.079 kbps Presentation Graphics Indonesian 23.118 kbps Presentation Graphics Greek 24.675 kbps Presentation Graphics Hebrew 14.896 kbps Presentation Graphics Bulgarian 20.200 kbps Presentation Graphics Croatian 20.922 kbps Presentation Graphics Estonian 20.072 kbps Presentation Graphics Latvian 20.512 kbps Presentation Graphics Lithuanian 22.273 kbps Presentation Graphics Romanian 20.781 kbps Presentation Graphics Slovenian 18.794 kbps Presentation Graphics Ukrainian 19.995 kbps Presentation Graphics Spanish 0.139 kbps Presentation Graphics Portuguese 0.281 kbps Presentation Graphics Turkish 0.161 kbps Presentation Graphics Russian 0.152 kbps Presentation Graphics Czech 0.198 kbps Presentation Graphics Hungarian 0.091 kbps Presentation Graphics Polish 0.033 kbps Presentation Graphics Thai 0.117 kbps