Hi All, I use Squid Cache: Version 2.6.STABLE5. I realise from the archives that some work has already been done on this. Following the previous work/wiki/archives, I am able to chache some youtube clips but not most. The limitting factor is not size (Mb), I have that adequately covered. >From the store.log I realise that responses without valid Dates (-1), last-Modified-Date and Expiry-dates being in the past are not cached. Meanwhile, I have ignore-no-cache, overide-expire in my refresh pattern: refresh_pattern -i \.flv$ 10080 90% 999999 ignore-no-cache override-expire ignore-private Find below 2 lines from the store.log: 1189970186.851 RELEASE -1 FFFFFFFF 7E4298A248D7B24F1CADFD910ADFA7EB 200 -1 -1 1189970173 video/flv 854722/854722 GET http://74.125.0.37/get_video?video_id=5chdYDbYQAA&origin=lax-v220.lax.youtube.com 1189970472.532 SWAPOUT 00 0000077F 99B2E186E59B0BE033FDBBF95E1F2D6C 200 1189970437 1188577407 -1 video/flv 874083/874083 GET http://lax-v149.lax.youtube.com/get_video?video_id=ligSwv-MI3U Are there any configuration parameters that I can use in overcoming this obstacle? Are there any other options that I can pursue in caching the youtube responses? Please help. Best Regards, solomon.