SingStar: Example - Stay Awake

"PS3":

To download this product, you must own SingStar™ on "PS3". After purchasing this product, load SingStar™ and visit the Purchase History screen via the Play SingStar™ menu to complete the download process.

File size 86 MB.
Full Game Support:
1 to 2 Players, HDD Minimum Save Size 5MB, HD 720p/1080i/1080p Compatible, Network Features Compatible, SingStar™ Microphones recommended, compatible with other USB microphones and Smart Devices, PlayStation®Eye camera compatible
Products can be used only in SingStar™ for "PS3" and only on one activated system per download. Download of this product is subject to the "PSN" Terms of Service/User Agreement and any specific additional conditions applying to this product. If you do not wish to accept these terms, do not download this product. See Terms of Service for further information. See Health Warnings for important health information before using this product. Music downloads not rated by PEGI - www.pegi.info

"PS4":

To download and use this product you must own SingStar™ on "PS4".

File size 88 MB.
Full Game Support:
1 to 2 Players, HDD Minimum Save Size 1.9 GB, HD 720p/1080i/1080p Compatible, Network Features Compatible, SingStar™ Microphones recommended, compatible with other USB microphones and Smart Devices, PlayStation®Camera compatible

Products can be used only in SingStar™ for the "PS4". Sign in to "PSN" is not required to use this on your primary "PS4" System, but is required for use on other "PS4" Systems. Download of this product is subject to the "PSN" Terms of Service/User Agreement and any specific additional conditions applying to this product. If you do not wish to accept these terms, do not download this product. See Terms of Service for further information. See Health Warnings for important health information before using this product. Music downloads not rated by PEGI - www.pegi.info

Source: PlayStation Store Description