I am new to this list so apologies if I am posting this in the wrong list. I would like to implement a virtual SCSI device for Optical drive with read & write support. I prefer to implement it in user space due to its simplicity. I came here to ask your help in choosing the frame work to implement this: SCST or LIO I think both offers frame works to implement this in user space. However, I am unsure of the extensive support these two, scst_user & tcmu, provides support for Optical Drive SCSI commands. I would be grateful if you could kindly let me know whether the followings are possible. 1. Can Optical Disc writing and other related commands be implemented using TCMU? 2. Does TCMU has any limitation to achieve the goal? 3. Would scst_user offer better support for implementing this. 4. Would tcmu performance enough for Bluray movie playback. Thank you, Bala -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html