📅 How old is my tape, film or slide?

Kodak introduced magnetic-striped Super 8 sound film in 1973. If your reel has a visible rust-red stripe down one edge, it cannot have been shot before then.

Super 8 launched in 1965 and dominated home movies through the mid-1970s before video took over. Silent Super 8 stayed available after sound was introduced, but most silent Super 8 footage in family attics dates from this first decade.

Standard 8 was the dominant amateur format from the 1930s until Super 8 took over after 1965. Most surviving Standard 8 footage was shot between the 1940s and early 1960s — wartime weddings, post-war family holidays, classic British seasides.

Pathé's 9.5mm format peaked between the wars and never fully recovered. Most surviving 9.5mm in UK family attics dates from the 1930s–1950s. If your reel is professionally-printed cinema content (early Disney shorts, newsreels, holiday films), the print date is usually within the original release decade.

16mm was launched in 1923 as the first non-flammable amateur format. After WWII it was popular for schools, churches, corporate AV and well-off families. Most surviving consumer 16mm dates from the 1940s–1960s; after that it became almost entirely a professional / educational format.

Broadcast and educational 16mm peaked from the 1950s through the 1980s before video took over. If your reel has BBC, ITV or commercial broadcasting markings, the year of the recording is usually printed on the box or leader.

Early VHS logos used a heavier, chunkier typeface. Dolby noise-reduction was rare on consumer VHS before 1985, so the absence of any Dolby logo is also a clue for the early period.

VHS HiFi stereo launched in 1984. The "Dolby" badge appeared on consumer VHS in volume from 1985 onwards. If your tape has either, it is almost certainly post-1984.

Manufacturers introduced premium tape lines in the mid-1980s to differentiate from cheap blank tape. The fancier the branding (Master, Pro, Vision), the later the tape — these designations peaked between 1990 and 1998.

E-series length codes are PAL (UK, Europe, Australia). They appeared from the late 1970s onwards. E-240 and E-300 (4 and 5-hour tapes) were less common before the mid-1980s, so seeing them often points later in the range.

Pre-recorded VHS rental titles first appeared in 1978. The copyright date and "© Disney" / "© Warner" year on the packaging is usually accurate within a year of release.

Blank VHS recorded off-air at home almost always dates from the home-recording golden age, roughly 1985–2000. The label handwriting style sometimes betrays the decade more than the tape itself — biro on cream paper feels 1980s; thicker felt-tip on white feels 1990s.

The "Type" designation was introduced in 1979 as part of the IEC cassette standardisation. Tapes that pre-date this often carry no Type marking and no Dolby logo (consumer Dolby B emerged in 1968 but took years to become standard).

Type I + Dolby B was the mainstream consumer combination from the late 1970s through the mid-1980s. If Dolby B is the only Dolby variant on the shell, you're probably in this window.

CrO₂ chrome tape existed from 1970 but the "Type II" designation only standardised in 1979. Most Type II tapes in attics today are home-recorded mixtapes from 1980–1995.

Metal tape launched in 1979 and was always the premium tier — expensive to manufacture, mostly bought by audiophiles. If you have Type IV tapes, you have a music enthusiast in the family.

Dolby S noise reduction launched in 1989 as a consumer subset of Dolby SR. It was only ever fitted to higher-end consumer decks and tapes, so its presence both dates the tape and signals it was likely an enthusiast purchase.

Length codes appeared from launch in 1963. C-120 (longer playing) used thinner tape and was less common before 1980 because of reliability issues. So C-120 in particular suggests post-1980.

Kodak used cardboard slide mounts as the default consumer mount from Kodachrome's 1936/1939 launch until the switch to plastic in 1976. Cardboard mounts cluster heavily in the 1950s–1960s peak of amateur slide photography.

Kodak switched consumer slide mounts to plastic in 1976. Kodachrome itself was discontinued in 2009 and the last K-14 lab closed in 2010. Plastic-mounted Kodachrome lives in this window.

Kodak printed the processing month and year onto consumer slide mounts from the 1940s onwards. The format varies (e.g. "JUN 67" or "08 76") but is essentially always the processing date. The photo was taken in the days or weeks before that date.

Ektachrome was Kodak's home-developable colour slide film. It became dominant for amateur slide photography in the 1970s–80s as Kodachrome processing became harder to find.

Monochrome slide film was the dominant slide format from the 1930s until Kodachrome and Ektachrome took over after the war. Black-and-white amateur slides in UK attics are usually pre-1965.

Kodak's 110 pocket-camera format launched in 1972 and was hugely popular through the 1980s. Slide-style transparencies in 110 size are nearly always from this window.

L-series length codes are the standard consumer Betamax range. Sony stopped producing Betamax decks for the UK in 1989 and most consumer activity ended by then. Tapes in this range almost always date from 1975–1989.

The first-generation Betamax logo was used through the format's consumer peak. By the mid-1980s Sony was modernising the visual identity in response to VHS's dominance.

ED (Extended Definition) Betamax launched in 1988 as Sony's upgrade for the prosumer market. It never sold well in the UK. ED Beta tapes are always 1988 or later.

Betacam is the professional broadcast format derived from Betamax. If you have Betacam tapes, someone in the family likely worked in TV, news, or corporate AV. The exact era depends on the deck — Betacam SP launched in 1986 and was the broadcast standard well into the 2000s.